Connecticut Native Meadow Seedlings

and Plant Identification Guide

Authors:

Alyssa Siegel-Miles, Victoria Wallace, and Sara Tomis
UConn Extension

Download a PDF version of this article

 

Interest in pollinator health has grown exponentially over the last decade. Pollinator species have declined in population due to multiple factors – most importantly, the loss of their natural habitats and lack of forage opportunities.

Home gardeners and green industry professionals can improve pollinator health by increasing the amount and diversity of native plants in managed landscapes. The restoration and improved health of our Connecticut ecosystems will support a more diverse variety of beneficial insect and other animal species.

Meadows are a viable option to support pollinator health by expanding the use of native plants within the landscape. A meadow is composed of grasses and native wildflowers, becoming aesthetically pleasing, functional, and self-sustaining over time. Native meadow plants are resilient, have adapted to the regional climate, and can survive adverse conditions. Meadows that are incorporated successfully into property management programs reduce maintenance expenses over time. While the first year of management requires attention and effort, the installation of a meadow can reduce labor and energy inputs associated with repeated mowing of expansive turfgrass areas, as well as challenging maintenance of slopes and uneven terrain.

In 2022, a demonstration meadow project was initiated at the Plant Science and Landscape Architecture Research Facility in Storrs, CT to serve as an educational resource and to evaluate meadow establishment practices, planting methods, and weed management strategies. This guide was developed to support the identification of pollinator meadow plants from germination to maturity. Seedling identification can help distinguish weeds that germinate in the seedbed from the desired meadow plants.

Listed are descriptions and photographs of plant species selected for the meadow demonstration project. Identification characteristics are described for the young seedling stage where there is significant difference from the mature plant.

All plants are (unless otherwise noted):

  • Native to northeastern U.S.
  • Perennial, and will generally bloom in the SECOND year, when grown from seed.
  • Hardy in the state of CT (USDA zones 5b to 7a).

    See UConn’s Native Plant and Sustainable Landscaping Guide for additional species to include in a meadow.

    Purple flowers
    Photo by Alyssa Siegel-Miles

    Connecticut Native Meadow Seedling Identification Chart

    Leaf Arrangement Simple or Compound Leaf Characteristics Botanical Name Common Name
    Alternate Simple Narrow; pointed Asclepias tuberosa butterfly weed
    Alternate Compound (pinnate – trifoliate) Obovate; blue-green Baptisia australis blue false indigo
    Alternate Simple Spatulate; hairy Solidago bicolor white goldenrod
    Alternate Simple Elliptic or lanceolate; taper to narrow petioles; hairy Solidago nemoralis gray goldenrod
    Alternate (leaflets opposite) Alternate (leaflets opposite) Compound (pinnate) Chamaecrista fasciculata partridge pea
    Alternate (leaflets opposite) Compound (pinnate) 2-4 pairs of leaflets, some face upright; oblong or elliptic; prominent midvein Senna hebecarpa wild senna
    Basal rosette (opposite when mature) Simple Lanceolate; some deeply lobed, appearing compound Coreopsis lanceolata lanceleaf coreopsis
    Basal rosette (opposite when mature) Simple Start round, mature to lanceolate-elliptic Oenothera fruticosa narrow-leaved sundrops
    Basal rosette (opposite when mature) Simple Oval with petiole; purple-red margins Penstemon digitalis  tall white beardtongue
    Basal rosette (when mature, mostly alternate) Simple Ovate to lanceolate; long petioles Echinacea purpurea purple coneflower
    Basal tuft (grass-like) (alternate when mature) Simple Linear, narrow, sessile, no hairs, prominent midvein Liatris spicata blazing star
    Basal rosette (alternate when mature) Simple Oval, hairy, with petiole Rudbeckia hirta black-eyed Susan
    Basal rosette (alternate when mature) Simple Ovate or lanceolate; long

    petioles; bluish

    Symphyotrichum laeve smooth blue aster
    Basal rosette (alternate when mature) Simple Oval; sessile; hairy Symphyotrichum novae-angliae New England aster
    Basal rosette (alternate when mature) Simple Oblanceolate; sessile; bluish Symphyotrichum oblongifolium aromatic aster
    Basal rosette (alternate when mature) Simple Linear, sessile, long thin hairs, sticky sap; appears grass-like Tradescantia ohiensis Ohio spiderwort
    Basal rosette (alternate when mature) Compound

    (pinnate – trifoliate)

    Round leaves, with petiole; zigzag margins Zizia aurea golden Alexanders
    Opposite Simple Triangular or heart shaped; serrated margins; prominent midvein Heliopsis helianthoides oxeye sunflower
    Opposite Simple Serrated, with petiole, visible midvein; red-purple underside; square stem Monarda fistulosa bee balm
    Opposite Simple Lanceolate; narrow Pycnanthemum tenuifolium slender mountain mint
    Whorled Compound (pinnate) Stemless, thread-like, divided into three segments Coreopsis verticillata threadleaf coreopsis

    chart - Bloom Time and Pollinators Supported by Meadow Species

    Bloom Time and Pollinators Supported by Meadow Species Chart –
    full chart available on pg. 3 of the PDF version

     

    Asclepias tuberosa — butterfly weed

    Important monarch butterfly larval host plant. Readily self-seeds. Good soil drainage is essential. Difficult to transplant – taproot. Perennial.

    • Attracts butterflies, moths, and bees.
    • Soil moisture: dry to medium.
    • Full sun. Deer resistant.
    seedling
    Photo by Alyssa Siegel-Miles
    small plant with Thick central stalk
    Photo by Alyssa Siegel-Miles

    Identification

    Seedling: Thick central stalk. Waxy, narrow, pointed, dark green leaves.

    Mature: Height: 1-2.5’; Spread: 1-1.5’.

    • Leaves: Oblong or lanceolate; glossy top leaf surface, lighter green and hairy on underside; toothless margins.
    • Stems: Multiple, ascending, becoming hollow and hairy as the plant matures. Does not have milky sap typical of other milkweeds.
    • Flowers: Orange umbels (June-August).
    • Fruit: Seed pods (August-September) have ornamental value (Figure 1).
    orange flowers. Seed pods (August-September) have ornamental value
    (Figure 1) Photo by Alyssa Siegel-Miles
    Group of orange flowers
    Photo by Alyssa Siegel-Miles

    Baptisia australis — blue false indigo

    Deep tap root and extensive root system. Tolerates drought and infertile soils. Does not respond well to transplanting. Attractive seed pods in fall. Perennial.

    • Attracts butterflies, moths, birds, and bees.
    • Soil moisture: dry to medium.
    • Part to full sun. Deer resistant.
    seedling
    Photo by Cathy Dewitt
    young plant with 3 leaves compounded at distal point
    Photo by Andrea Laine

    Identification

    Seedling: 3 leaves compounded at distal point.

    Mature: Height and spread: 3-4’.

    • Leaves: Trifoliate, compound obovate, blue green; alternate, with smooth edges.
    • Stems: Considerable branching.
    • Flowers: Blue or purple, pea-like, dense clusters on vertical spikes (May-June).
    • Fruit: Ornamental green seed pods (Figure 2); mature to black. Good for dried flower arrangements.
    Purple vertical flower stalk
    Photo by Alyssa Siegel-Miles
    Blue or purple, pea-like, dense clusters on vertical spikes (May-June).
    Photo by Alyssa Siegel-Miles

    Ornamental green seed pods (Figure 2); mature to black. Good for dried flower arrangements.

    Ornamental green seed pods (Figure 2); mature to black. Good for dried flower arrangements. Photo by Alyssa Siegel-Miles

    Chamaecrista fasciculata — partridge pea

    Butterfly larval host plant. Legume (fixes nitrogen; improves soil fertility). Used for erosion control. Seed in late March-May. Readily self-seeds. Annual.

    • Attracts butterflies, moths, birds, and bees.
    • Soil moisture: dry to medium. Part to full sun.
    Seedling
    Photo by Alyssa Siegel-Miles
    Pinnately-compound with small, yellow-green leaflets that are sensitive to touch. Up to 20 leaflets per leaf.
    Photo by Alyssa Siegel-Miles

    Identification

    Seedling: Thin, light green, erect stems.

    Mature: Height and spread: 1-3’.

    • Leaves: Pinnately-compound with small, yellow-green leaflets that are sensitive to touch. Up to 20 leaflets per leaf.
    • Stems: Become reddish-brown as the plant matures. Tiny, reddish-orange glands on petiole produces nectar that attract insects.
    • Flowers: Yellow, pea-like (June-September).
    • Fruit: Seed pods in fall, initially hairy green (Figure 3); become hairless and dark brown. Good food source for gamebirds, songbirds.
    Yellow, pea-like (June-September).
    Photo by Alyssa Siegel-Miles
    A close up of a bee on a yellow flower
    Photo by Alyssa Siegel-Miles
    Large group of yellow flowers
    Photo by Alyssa Siegel-Miles
    Spiked plant
    (Figure 3) Photo by Alyssa Siegel-Miles

     Coreopsis lanceolata — lanceleaf coreopsis

    Butterfly, moth larval host plant. Grows well in heat and humidity. Drought tolerant. Forms extensive colonies; aggressive self-seeder. Deadheading will extend flowering. Short-lived perennial.

    • Attracts butterflies, moths, birds, and bees.
    • Soil moisture: dry to medium.
    • Part to full sun. Deer resistant.
    Seedling
    Photo by Alyssa Siegel-Miles
    Lanceolate, some deeply lobed, appearing almost compound. Basal rosette.
    Photo by Alyssa Siegel-Miles

    Identification

    Mature: Height and spread: 1-2’.

    • Leaves: Lanceolate, some deeply lobed, appearing almost compound. Basal rosette. Sparsely hairy. Opposite leaf arrangement in maturity. Leaves mostly in bottom half.
    • Stems: Slender; multiple from base, growing in small clumps.
    • Flowers: Yellow ray petals with light yellow central disc that gets darker with maturity, petals notched at tip (May-July).
    Yellow ray petals with light yellow central disc
    Photo by Alyssa Siegel-Miles
    A field of bright yellow flowers
    Photo by Alyssa Siegel-Miles

    Coreopsis verticillata — threadleaf coreopsis

    Attracts beneficial syrphid flies, yellow-collared scape moth. Drought tolerant. Good plant for infertile, dry soils. Grows in dense, bushy clumps. Reblooms in September if sheared lightly in August. Self-seeds. Perennial.

    • Attracts butterflies, moths, and bees.
    • Soil moisture: dry to medium.
    • Part to full sun. Deer resistant.
    A group of small seedlings
    Photo by Elaine Mills
    Stemless, thread-like, dark green, pinnately compound; divided into three segments; whorled.
    Photo by Alyssa Siegel-Miles

    Identification

    Mature: Height: 2-2.5’; Spread: 1.5-2’

    • Leaves: Stemless, thread-like, dark-green, pinnately compound; divided into three segments; whorled.
    • Flowers: loose clusters (cymes) of yellow ray petals with central disks; petals without notching (June-September).
    • Stems: thin, green.
    • Fruit: Dark achenes (July-October).
    loose clusters (cymes) of yellow ray petals with central disks; petals without notching (June-September).  
    Photo by Alyssa Siegel-Miles
    Two groups of yellow ray flowers
    Photo by Alyssa Siegel-Miles

    Echinacea purpurea — purple coneflower

    Seeds are a good food source for birds. Long summer bloom. Multi-season interest. Mixes well with grasses. Drought resistant; tolerates infertile soil conditions. Self-seeds. Native to central to southeastern United States. Perennial.

    • Attracts butterflies, moths, bees, and birds.
    • Soil moisture: dry to medium.
    • Part to full sun. Deer resistant.
    Seedling
    Photo by Alyssa Siegel-Miles
    Thick, rough, lanceolate or obovate; smaller toward the top of the stem. Margins have widely spaced teeth. Petioles are short and slightly winged.
    Photo by Alyssa Siegel-Miles

    Identification

    Seedling: Ovate to lanceolate leaves, on long petioles, grows from a basal rosette.

    Mature: Height: 2-5’; Spread: 1.5-2’.

    • Leaves: Thick, rough, lanceolate or obovate; smaller toward the top of the stem. Margins have widely spaced teeth. Petioles are short and slightly winged.
    • Flowers: Pink-purple ray petals, orange-brown disk flowers in center (June-August).
    A group of pink flowers
    Photo by Alyssa Siegel-Miles
    Echinacea purpurea `Magnus`
    Photo by Alyssa Siegel-Miles

    Heliopsis helianthoides — oxeye sunflower

    Seeds are good food source for birds. Readily self-seeds. Long summer bloom. Deadhead to extend bloom season. Short-lived perennial.

    • Attracts butterflies, moths, birds (including hummingbirds), and bees.
    • Soil moisture: dry to medium. Full sun.
    Seed source
    Photo by Alyssa Siegel-Miles
    Paired, cordate (heart-shaped), with serrated edges and a coarse texture.
    Photo by Alyssa Siegel-Miles

    Identification

    Seedling: Cotyledons round, margins entire. Leaves are simple, elongated triangle, with petiole, serrated margins, leaf hairs, and prominent midvein.

    Mature: Height: 3-6’; Spread: 2-3’.

    • Leaves: Paired, cordate (heart-shaped), with serrated edges and a coarse texture.
    • Stems: Hairy, stiff, branched; oval in cross section.
    • Flowers: Orange-yellow ray petals with brown or golden disks (June-August). Alternating long and short bracts surround outer base of flower (Figure 4).
    A row of yellow flowers
    Photo by Alyssa Siegel-Miles
    A close up of a yellow flower
    Photo by K. Chayka
    Front view of a yellow flower
    Photo by K. Chayka
    Heliopsis helianthoides ‘Burning Hearts`
    Cultivar Heliopsis helianthoides ‘Burning Hearts’. Photo by Alyssa Siegel-Miles

    Liatris spicata — blazing star

    Seeds are a good food source for songbirds (e.g., goldfinches). Flower stalk adds attractive architectural interest. Drought tolerant. Intolerant of wet soils in winter. Reproduces via corms or seeds. Perennial.

    • Attracts butterflies, moths, birds, and bees.
    • Soil moisture: dry to medium. Full sun.
    Seedling
    Photo by K. Robertson
    Cotyledons oval, margins entire.  Simple, linear, sessile leaves, no hairs, prominent midvein.
    Photo by Wisconsin Extension

    Identification

    Seedling: Cotyledons oval, margins entire. Simple, linear, sessile leaves, no hairs, prominent midvein. One or more stalks emerge from a basal tuft.

    Mature: Height: 2-4’; Spread: 0.75-1.5’

    • Leaves: Narrow, grass-like, medium green, alternate; smaller higher up the stalk. Glabrous to sparsely hairy. Margins entire.
    • Stems: Green, purplish.
    • Flowers: Red-purple, dense, narrow spike; blooms from the top down (July-August).
    Red-purple, dense, narrow spike; blooms from the top down (July-August).
    Photo by Kathleen Moore
    Seeds
    Photo by Carstor, NCSU

    Monarda fistulosa — bee balm

    Tubular flowers attract hummingbirds. Long summer bloom. Drought tolerant. Requires good air circulation to prevent foliar diseases; susceptible to powdery mildew. Perennial.

    • Attracts butterflies, moths, birds, and bees.
    • Soil moisture: dry to medium.
    • Part to full sun. Deer resistant.
    Seedlings
    Photo by Alyssa Siegel-Miles
    Oblong, opposite, coarsely toothed; rounded at the leaf base, tapering to a point at the tip. Aromatic.
    Photo by Alyssa Siegel-Miles

    Identification

    Seedling: Cotyledons round, margins entire. Leaves simple, serrated, no hairs; with petiole, visible midvein, red-purple underside.

    Mature: Height: 2-4’; Spread: 2-3’.

    • Leaves: Oblong, opposite, coarsely toothed; rounded at the leaf base, tapering to a point at the tip. Aromatic.
    • Stems: Reddish-brown, square.
    • Flowers: Pink-purple, two-lipped, tubular, rest on showy whorl of bracts (June-September).
    Pink-purple, two-lipped, tubular flowers, rest on showy whorl of bracts
    Photo by Alyssa Siegel-Miles
    A field of pink flowers
    Photo by Vickie Wallace

     

    Oenothera fruticosa narrow-leaved sundrops

    Forms colonies; spreads easily by rhizomes. Propagate by seed and cuttings. Intolerant of wet soils in winter. Perennial.

    • Attracts butterflies, moths, birds (including hummingbirds), bees.
    • Soil moisture: dry to medium.
    • Full sun. Deer and rabbit resistant.
    Seedling
    Photo by Salicyna, NC Extension
    Yellow, cup-shaped flower (May-July).
    Photo by Alyssa Siegel-Miles

    Identification

    Seedling: Round leaves, sinuate or undulate margins. Basal rosette.

    Mature: Height: 1.5-2.5’; Spread: 1-3’.

    • Leaves: Basal leaves are lanceolate, 1-4” long; margins entire to slightly wavy; moderately to densely hairy. Stem leaves are opposite, shorter (.75-1.5”), narrow elliptical.
    • Stems: Hairy with green or reddish hue.
    • Flowers: Yellow, cup-shaped (May-July).
    • Fruit: Distinctive club-shaped seed capsules evident from June-November.
    A group of yellow flowers
    Photo by Alyssa Siegel-Miles
    Basal leaves are lanceolate, 1-4” long; margins entire to slightly wavy; moderately to densely hairy. Stem leaves are opposite, shorter (.75-1.5”), narrow elliptical.
    Photo by Alyssa Siegel-Miles

    Penstemon digitalis — tall white beardtongue

    Attracts hummingbirds. Late spring bloom. Drought tolerant. Quick grower. Exhibits clumping. Root rot may occur in wet, poorly-drained soils.  Perennial.

    • Attracts butterflies, moths, birds, and bees.
    • Soil moisture: dry to medium.
    • Full sun. Deer resistant.
    Cotyledons oval, margins entire.
    Alyssa Siegel-Miles
    oval leaves from basal rosette
    Photo by Tom Barry

    Identification

    Seedling: Cotyledons oval, margins entire. Simple, oval leaves from basal rosette; with petiole, entire margins, prominent midvein and purple-red margins.

    Mature: Height 3-5’; Spread: 1.5-2’.

    • Leaves: Basal leaves elliptic; stem leaves lance or oblong, opposite.
    • Flowers: White, tubular in panicles; purple streaks direct pollinators (May-July).
    • Stems: Slender, smooth, green to purple.
    • Fruit: Ornamental seed capsules (Figure 5).
    White, tubular in panicles; purple streaks direct pollinators (May-July).
    Photo by Alyssa Siegel-Miles

    A close up of a white flower

    Penstemon digitalis `Husker Red` 
    Photo by Alyssa Siegel-Miles

    Slender, smooth, green to purple stem

    (Figure 5) Ornamental seed capsules. Photo by Alyssa Siegel-Miles

     

    Pycnanthemum tenuifolium — slender mountain mint

    Excellent nectar source for pollinators. Appears delicate, fine-textured. Drought tolerant. Self-seeds. Spreads quickly, but not aggressively. Perennial.

    • Attracts butterflies, moths, and bees.
    • Soil moisture: dry to medium.
    • Part to full sun.
    Lanceolate leaves, becoming slenderer as plant matures.
    Photo by Grow Native! MO Plant Foundation
    Aromatic, opposite; numerous narrow leaflets. Branching occurs at the leaf axils.
    Photo by Growing Wild Nursery

    Identification

    Seedling: Lanceolate leaves, becoming more slender as plant matures.

    Mature: Height 2-4’; Spread: 2-3’.

    • Leaves: Aromatic, opposite; numerous narrow leaflets. Branching occurs at the leaf axils.
    • Stems: Smooth, square, purple-red.
    • Flowers: White with purple spotting, borne at the top of the stems (June-September).
    • Fruits: Nutlets. Ornamental dark gray seed heads provide fall-winter interest (Figure 6).
    White flowers with purple spotting, borne at the top of the stems (June-September). 
    Photo by S. R. Turner
    Nutlets. Ornamental dark gray seed heads provide fall-winter interest (Figure 6).
    Figure 6. Photo by NCBG
    White with purple spotting, borne at the top of the stems (June-September).
    Photo by S. R. Turner

    Rudbeckia hirta — black-eyed Susan

    Use for early meadow establishment. Fast grower. Self-seeds freely. Long summer bloom extends into fall. Drought and salt tolerant.     Susceptible to powdery mildew. Avoid overfertilization (will produce fewer flowers). Biennial.

    • Attracts butterflies, moths, birds, and bees.
    • Soil moisture: dry to medium.
    • Part to full sun. Moderate deer resistance.
    Seedling
    Photo by Alyssa Siegel-Miles
    Cotyledons oval, margins entire; basal rosette; simple, entire, oval, hairy leaves with petiole and prominent midvein.
    Photo by Alyssa Siegel-Miles

    Identification

    Seedling: Cotyledons oval, margins entire; basal rosette; simple, entire, oval, hairy leaves with petiole and prominent midvein.

    Mature: Height: 2-3’; Spread: 1-2’.

    • Leaves: Narrow, oblong, alternate, hairy; toothed or almost smooth margins. Lower leaves larger than top. Winged petioles.
    • Flowers: Yellow ray petals with brown, domed center disks (June-September).
    Yellow flowers
    Photo by Alyssa Siegel-Miles
    Cotyledons oval, margins entire; basal rosette; simple, entire, oval, hairy leaves with petiole and prominent midvein. Mature: Height: 2-3’; Spread: 1-2’.
    Photo by Alyssa Siegel-Miles

    Senna hebecarpa — wild senna

    Host plant for sulphur butterflies. Versatile: attractive flower, foliage, and seed pods in fall and winter (Figure 7). Good fall color. Horizontal root system provides strength against winds. Can be used as a hedge. Legume (fixes nitrogen). Perennial.

    • Attracts butterflies, moths, birds, and bees.
    • Soil moisture: medium.
    • Full sun. Deer resistant.
    Seedling
    Photo by Alyssa Siegel-Miles
    Senna hebecarpa
    Photo by Ernst Seeds

    Identification

    Mature: Height 4-6’; Spread: 3-4’.

    • Leaves: Compound pinnate in pairs of 5-10, gray-green, alternate; leaflets oblong or elliptic with a pointed tip. Stipules and small, club-shaped gland at base of petiole.
    • Stems: Light green; slightly hairy at top.
    • Flowers: Yellow, becoming white as they mature (July-August).
    • Fruit: Dark brown seed pods.
    Host plant for sulphur butterflies. Versatile: attractive flower, foliage, and seed pods in fall and winter (Figure 7).
    Photo by University of Illinois
    Yellow, becoming white as they mature (July-August).
    Photo by Justin Wheeler

    Solidago bicolor — white goldenrod

    Butterfly larval host plant. Seeds are a desirable food source for birds. Showy flower.  Long summer bloom extends into autumn. Drought and salt tolerant. Exhibits clumping. Perennial.

    • Attracts butterflies, moths, birds, and bees.
    • Soil moisture: dry.
    • Part to full sun. Deer resistant.
    Solidago bicolor
    Photo by R. Parker
    Solidago bicolor
    Photo by Ernst Seeds

    Identification

    Seedling: Spatulate leaves.

    Mature: Height: 2-3’; Spread: 1-2’.

    • Leaves: Hairy, elliptical; basal leaves shallowly toothed and with grayish down.
    • Stems: hairy, grayish.
    • Flowers: Spikes of white ray petals with a yellow center (July-October). Only goldenrod with white rays in the eastern U.S.
    Hairy, elliptical; basal leaves shallowly toothed and with grayish down.
    Photo by Alyssa Siegel-Miles
    Spikes of white ray petals with a yellow center (July-October).
    Photo by Glen Mittelhauser

    Solidago nemoralis — gray goldenrod

    Blooms into late autumn. Drought resistant. Self-seeds and spreads rapidly, but not overly aggressively. Exhibits clumping. Showy flower. Perennial.

    • Attracts butterflies, moths, birds, and bees.
    • Soil moisture: dry.
    • Part to full sun. Deer resistant.
    Solidago nemoralis seedling
    Photo by R. Parker
    Solidago bicolor
    Photo by Ernst Seeds

    Identification

    Mature: Height and spread: 0.5-2’.

    • Leaves: Elliptic or lanceolate; taper gradually to narrow petioles; hairy; may be toothed; smaller towards top of stem. Small clusters of secondary leaves often in axils of middle to upper leaves (Figure 8).
    • Stems: Unbranched, curving at flower tip; hairy; reddish or grayish green.
    • Flowers: Yellow (August-November).
    • Fruit: Achenes with hairy tufts (Figure 9).
    Solidago nemoralis Elliptic or lanceolate; taper gradually to narrow petioles; hairy; may be toothed; smaller towards top of stem. Small clusters of secondary leaves often in axils of middle to upper leaves
    Photo by Illinois Wildflowers
    Solidago nemoralis — gray goldenrod
    Figure 9. Photo by Go Botany
    Solidago nemoralis
    Photo by Dan Mullen

    Symphyotrichum laeve — smooth blue aster

    Butterfly larval host plant. Autumn bloom. Fast grower; self-seeds. Susceptible to powdery mildew. Drought tolerant. Perennial.

    • Attracts butterflies, moths, birds, and bees.
    • Soil moisture: dry to medium.
    • Full sun.
    basal rosette
    Photo by Katy Chayka
    Aster laevis (Smooth Aster)
    Photo by Ernst Seeds

    Identification

    Seedling: Basal rosette of ovate or lanceolate leaves with long petioles.

    Mature: Height: 2’-4’; Spread: 1’-2’.

    • Leaves: Alternate, simple, bluish; lance to egg-shaped; partly clasping stems. Smaller and closer together towards top of stem.
    • Stems: Light green-light blue or purple, glabrous, and often glaucous.
    • Flowers: Panicle of blue or purple flowerheads with yellow disks (August-October).
    Smooth Aster
    Photo by K. Andre
    Symphyotrichum laeve
    Photo by Anne McCormack

    Symphyotrichum novae-angliae — New England aster

    Butterfly larval host plant. Nectar source for monarch butterflies. Autumn bloom. Self-seeds. Showy flower. Requires good air circulation to prevent foliar diseases. Perennial.

    • Attracts butterflies, moths, birds, and bees.
    • Wide range of soil moisture tolerance.
    • Full sun. Deer resistant.
    Seedlings
    Photo by K. Robertson, PSSF
    Symphyotrichum novae-angliae — New England American-aster
    Photo by Glen Mittelhauser

    Identification

    Seedling: Cotyledons oval, margins entire. Simple, oval, sessile, hairy leaves.

    Mature: Height: 3-6’; Spread: 2-3’.

    • Leaves: Oblong or lanceolate, hairy, alternate; dense. Clasp stem at base of leaf. Smaller towards top of stem. Smooth margins; rough texture.
    • Stems: Hairy. Central stem, with some branching at top.
    • Flowers: Composite, in clusters of purple-blue ray petals with yellow disks (August-September).
    Aster
    Photo by Jodi Sulpizio, Penn State Extension
    S. novae-angliae ‘Purple Dome’
    Photo by Alyssa Siegel-Miles

    Symphyotrichum oblongifolium — aromatic aster

    Butterfly larval host plant. Showy bloom through late autumn. Resistant to drought and rabbit damage. Can be top heavy; may benefit from spring pruning or staking. Spreads via seed. Perennial.

    • Attracts butterflies, moths, birds, and bees.
    • Soil moisture: dry to medium.
    • Full sun. Deer resistant.
    Aster oblongifolius(Aromatic Aster)
    Photo by Ernst Seeds
    Leaves Close-Up
    Photo by Andrea Laine

    Identification

    Seedling: Basal rosette.

    Mature: Height and spread: 1-3’.

    • Leaves: oblanceolate, bluish, sessile, slightly hairy, clasping, alternate. Densely crowded. Smaller towards top of stem. Aromatic.
    • Stems: Stiff, slender, slightly hairy; dense branching, appears bushy. Lower stems turn brown and slightly woody with age.
    • Flowers: Compound; purple ray petals with yellow disks that become reddish-purple.
    Eastern Aromatic Aster
    Photo by Andrey Zharkikh
    S. oblongifolium ‘Raydon’s Favorite’
    Cultivar S. oblongifolium ‘Raydon’s Favorite’. Photo by Alyssa Siegel-Miles

    Tradescantia ohiensis — Ohio spiderwort

    Showy flower. Self-seeds aggressively. Prefers moist, acidic, sandy soil, but is highly adaptable. Tolerates part shade, but produces fewer blooms. Forms clumps. Can be propagated by division and cuttings. Perennial.

    • Attracts butterflies, moths, and bees.
    • Soil moisture: dry to medium.
    • Part to full sun.
    Small seedling
    Photo by K. Robertson, PSSF
    Tradescantia ohiensis(Ohio Spiderwort)
    Photo by Ernst Seeds

    Identification

    Seedling: Simple, linear, sessile leaves with entire margins, long thin hairs, and sticky sap. Appears grass-like.

    Mature: Height: 2-3’; Spread: 1-2.5’

    • Leaves: Simple, dark blue-green, linear, wider at base. Parallel venation. Lengthwise groove in center. Base of leaf clasps stem.
    • Stems: Smooth; hairless; may be purplish.
    • Flowers: Blue, tri-petaled (May-July); grow out of the leaf axil.
    Blue, tri-petaled (May-July); grow out of the leaf axil.
    Photo by Alyssa Siegel-Miles
    Tradescantia ohiensis
    Photo by Debbie Roos

    Zizia aurea golden Alexanders

    Perennial. Showy flowers. Self-seeds. Beautiful en masse. Can be used in meadows, rain gardens or border plantings. Grows in colonies. Tolerates dry soils.

    • Attracts butterflies, moths, and bees.
    • Soil moisture: medium; tolerates wide range.
    • Part to full sun.
    Zizia aurea
    Photo by K. Robertson, PSSF
    Zizia aurea(Golden Alexanders)
    Photo by Ernst Seeds

    Identification

    Seedling: cotyledons strap-like, margins entire. Simple, round leaves, with petiole, zigzag margins, no hairs.

    Mature: Height: 1.5-2’; spread: 1-2’

    • Leaves: Pinnately compound, trifoliate, serrated margins, with petiole. Purplish hue in the fall. Stems light green, hairless, shiny.
    • Flowers: Yellow compound umbel (May-June).
    • Fruit: Green capsules early to mid-summer; become light purple in autumn.
    Zizia aurea
    Photo by Debbie Roos
    Yellow compound umbel (May-June).
    Photo by Alyssa Siegel-Miles

    Glossary

    Achene: a small, dry one-seeded fruit that does not open at maturity.

    Alternate: leaf pattern arrangement with one leaf per node.

    Annual: completes life cycle from seed to mature plant in one year.

    Compound leaf: divided into several leaflets.

    Cordate: heart-shaped leaf.

    Cotyledon: an embryonic leaf in seed-bearing plants, one or more of which are the first leaves to appear from a germinating seed.

    Distal point: far side from the place of attachment (shoot or root).

    Elliptic: oval, with the widest part at or near the middle.

    Entire: with a continuous, untoothed margin (leaf description).

    Glabrous: smooth; not hairy or pubescent.

    Glaucous: greyish or bluish waxy coating; usually rubs off easily.

    Lanceolate: narrowly ovate. Wider at the base than at the middle, tapering toward the apex, at least 3 times as long as wide.

    Larval host: a plant on which butterfly or moth females lay eggs, so that their larvae can then feed on the plant after hatching. Many species require specific plants for their larvae to feed on to survive.

    Margin: edge of a leaf.

    Nectary: plant gland that secretes nectar, usually located at base of flower stamens; draws pollinators into contact with the pollen.

    Node: the joint of a stem; region of attachment of leaves to a stem.

    Oblong: longer than broad; sides nearly parallel, rectangular with rounded edges.

    Obovate: broader part at apex/above the middle, rather than base.

    Ovate: broader at the base; gradually tapering to a rounded tip.

    Opposite: leaf arrangement with two leaves per node.

    Perennial: lives for more than two years. Returns each year; continues growing until reaching maturity.

    Petiole: the stalk between the leaf blade and the stem.

    Pinnately compound: divided into smaller leaflets; leaflets arranged on each side of leaf’s central stalk/rachis.

    Rosette: circular arrangement of leaves; grows from base.

    Sessile: stalkless and attached directly at the base (e.g., sessile leaf).

    Stipule: small, usually leaflike appendage at base of the petiole, often in pairs.

    Serrated: margin notched like a saw, with sharp teeth pointing toward the tip.

    Simple leaf: a leaf blade that is all one piece; may be deeply lobed or divided, but not separated in leaflets.

    Sinuate: A sinuate margin has shallowly rounded divisions within the same plane of the blade.

    Trifoliate: having three leaves, leaflike parts, or (of a compound leaf) leaflets.

    Umbel: an inflorescence, made up of many tiny flowers with stalks of nearly equal length that radiate from a common point to form a flat or rounded flower cluster.

    Undulate: an undulate margin has wavy margins that occur above and below the plane of the leaf.

    Whorled: three or more equally spaced leaves at a node.

     

    References and Resources

    Clark, M. 2020. Who has the Blues? Under the Solano Sun, University of California. ucanr.edu/blogs

    Clemson University College of Agriculture, Forestry, and Life Sciences. Symphyotrichum oblongifolium: Aromatic Aster. clemson.edu/cafls/demo/plant_profiles/symphyotrichum-oblongifolium.html

    Connecticut Butterfly Association. 2007. Life Histories of Connecticut Butterflies. ctbutterfly.org

    Connecticut Department of Energy and Environmental Protection Bureau of Natural Resources. 2015. Connecticut’s Endangered, Threatened, and Special Concern Species. portal.ct.gov/-/media/DEEP

    Cornell University Growing Guide: Coreopsis, Threadleaf. gardening.cornell.edu/homegardening

    Eastern Illinois University. Prairie Restoration Digital Aid: Seeds, Seedlings, and Fruits. castle.eiu.edu/prairie

    Finger Lakes Native Plant Society. flnps.org/seedlings

    Go Botany. Simple and Advanced Plant ID. gobotany.nativeplanttrust.org

    Greenfield Community College Robert L. Pura Outdoor Learning Laboratory. Purple Coneflower. gcc.mass.edu/oll/plants/purple-cone-flower

    Greiner, S. & Köhl, K. (2014). Growing evening primroses (Oenothera). Frontiers in Plant Science, 5, 38–38. doi.org/10.3389/fpls.2014.00038

    Illinois Wildflowers. illinoiswildflowers.info

    Lady Bird Johnson Wildflower Center, The University of Texas. wildflower.org

    Minnesota Wildflowers. minnesotawildflowers.info

    Missouri Botanical Garden. missouribotanicalgarden.org

    Missouri Plant Foundation. Slender Mountain Mint. grownative.org/project/slender-mountain-mint

    Native Plant Trust. nativeplanttrust.org

    Neal, C. 2019. Planting for Pollinators: Establishing a Wildflower Meadow from Seed. University of New Hampshire Extension. extension.unh.edu

    North Carolina State University Extension Gardener Plant Toolbox. plants.ces.ncsu.edu/find_a_plant

    Roos, D. Pollinator Garden Videos. North Carolina State University Extension. growingsmallfarms.ces.ncsu.edu/growingsmallfarms-garden-videos

    Stoner, K. A Citizens’ Guide to Creating Pollinator Habitat in Connecticut. CAES. portal.ct.gov

    United States Department of Agriculture Forest Service. fs.usda.gov

    United States Department of Agriculture Natural Resource Conservation Service. nrcs.usda.gov

    University of Illinois Extension Wildflowers. web.extension.illinois.edu/wildflowers/default.cfm

    University of Massachusetts Herbarium. ag.umass.edu/landscape/publications-resources/weed-herbarium

    University of New Hampshire Extension. Asclepias tuberosa, Butterfly Milkweed. Heliopsis helianthoides, Ox-Eye Sunflower. Monarda fistulosa, Wild Bergamot. Rudbeckia hirta, Black Eyed Susan. extension.unh.edu

    University of New Hampshire Extension. Wildflower Meadows. extension.unh.edu/agriculture-gardens/landscaping/wildflower-meadows

    University of Rhode Island. East Farm Pollination Research Project. web.uri.edu/mastergardener/pollination-meadow/

    University of Wisconsin Horticulture. Butterflyweed, Asclepias tuberosa. hort.extension.wisc.edu/articles/butterflyweed-asclepias-tuberosa/

    Wallace, V. and A. Siegel-Miles. 2021. Connecticut Native Plant and Sustainability Guide. University of Connecticut Extension. s.uconn.edu/UConnNativePlantGuide

    Zarrillo, T. The Connecticut Bumble Bee Guide. CAES. portal.ct.gov

     

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    © UConn Extension. All rights reserved. Updated June 2023. Funds to support the creation of this document were provided by the Crop Protection and Pest Management Extension Implementation Program [grant no. 2017-70006-27201/project accession no. 1013777] from the USDA National Institute of Food and Agriculture.

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