Heirloom

New England Aster

Symphyotrichum novae-angliae

A delicate white flower with green foliage

The crown jewel of fall-blooming wildflowers, this spectacular native transforms into clouds of tiny purple flowers just when most gardens are winding down. Essential for monarch butterfly migration and beloved by over 100 native bee species, it provides crucial late-season nectar when little else is blooming. The impressive 3-6 foot tall plants create dramatic backdrops and naturalize beautifully in wildflower meadows.

Harvest

365-450d

Days to harvest

📅

Sun

Full sun to partial shade

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Zones

4–8

USDA hardiness

🗺️

Height

3-7 feet

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Planting Timeline

Zone:

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Transplant

Direct Sow

Transplant

Direct Sow

Showing dates for New England Aster in USDA Zone 7

All Zone 7 native-wildflower →

Zone Map

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New England Aster · Zones 4–8

What grows well in Zone 7? →

Growing Details

Difficulty

Easy to moderate

Spacing24-36 inches

SoilMoist, well-drained loam, tolerates clay

pH5.5-8.0

Water1-1.5 inches per week, tolerates some drought

SeasonCool season sowing, fall blooming

FlavorNot applicable - ornamental/wildlife use

ColorDeep purple-violet with yellow centers

Size1-1.5 inch diameter flowers in large clusters

Zone-by-Zone Planting Calendar

Zone	Indoor Start	Transplant	Direct Sow	Harvest
Zone 4	—	June – July	April – June	—
Zone 5	—	May – July	April – June	—
Zone 6	—	May – July	April – June	—
Zone 7	—	May – June	March – May	—
Zone 8	—	April – June	March – May	—

Complete Growing Guide

Light: Full sun (6 or more hours of direct sunlight a day), Partial Shade (Direct sunlight only part of the day, 2-6 hours). Soil: Clay, High Organic Matter. Drainage: Good Drainage, Moist, Occasionally Dry. Height: 3 ft. 0 in. - 7 ft. 0 in.. Spread: 2 ft. 0 in. - 3 ft. 0 in.. Spacing: 12 inches-3 feet. Maintenance: Medium. Propagation: Seed. Regions: Mountains, Piedmont.

Harvesting

The herb produces a dry seed (achene) that displays from October to November.

Type: Achene.

Harvest time: Fall

Storage & Preservation

New England Aster is primarily grown as a living ornamental plant rather than harvested for storage. For cut flowers, place stems in cool water immediately after cutting and refrigerate at 35-40°F with high humidity (80-90%) to extend vase life to 7-10 days. Preserve dried flowers by hanging bundles upside-down in a cool, dark, well-ventilated space for 2-3 weeks. For seed saving, allow flowers to dry on the plant, collect seed heads in fall, and store seeds in a cool, dry location at 40°F or below in sealed containers for spring planting.

History & Origin

Native to northeastern North America, this aster species has been valued for generations as a wildflower staple rather than a deliberate breeding creation. Symphyotrichum novae-angliae evolved naturally throughout New England and the eastern United States, earning its common name from this region of origin. Unlike many ornamental varieties developed through formal breeding programs, the New England Aster represents a heritage tradition of native plant appreciation, with gardeners and naturalists simply collecting and propagating seeds from wild populations for centuries. Its prominence in fall gardens reflects recognition of its ecological importance rather than recent horticultural innovation.

Origin: Eastern North America

Advantages

+Attracts: Butterflies, Pollinators, Predatory Insects, Small Mammals, Songbirds, Specialized Bees

Companion Plants

The native meadow companions — Purple Coneflower (Echinacea purpurea), Black-eyed Susan (Rudbeckia hirta), Goldenrod (Solidago spp.), and Little Bluestem Grass (Schizachyrium scoparium) — pair well with New England Aster because they share the same basic requirements: full sun, lean-to-average soil, and good drainage. They also bloom in sequence, keeping the planting active for pollinators from June through hard frost. In our zone 7 Georgia garden, Goldenrod and Aster overlapping in October draws more native bees than almost anything else we grow. Little Bluestem is worth calling out specifically — at 18-24 inches, its clumps fill the base of the taller asters without competing hard for water or light, and the winter seed heads have their own value for birds.

Keep New England Aster away from Black Walnut (Juglans nigra). The roots and decomposing leaf litter release juglone, a compound toxic to a wide range of plants, and asters are sensitive to it. Dense stands of Tall Fescue (Festuca arundinacea) cause a subtler problem — the grass puts out allelopathic compounds and its thick root mat crowds out the aster's fibrous roots, especially during the first season of establishment. Autumn Olive (Elaeagnus umbellata) is a different category of problem: it's a state-listed invasive shrub in Georgia and will overtop and shade out everything nearby within a few years.

Plant Together

Purple Coneflower

Shares similar growing conditions and attracts beneficial pollinators while extending bloom season

Black-eyed Susan

Complementary bloom times and both support native butterfly and bee populations

Wild Bergamot

Natural pest deterrent that repels ants and rodents while attracting beneficial insects

Goldenrod

Blooms simultaneously providing abundant nectar for migrating monarchs and other pollinators

Little Bluestem Grass

Provides structural support and creates natural prairie ecosystem while improving soil drainage

Joe Pye Weed

Attracts butterflies and beneficial insects while providing wind protection for shorter asters

Wild Ginger

Acts as living mulch suppressing weeds and retaining soil moisture around aster roots

Yarrow

Improves soil health and attracts predatory insects that control aphids and other aster pests

Keep Apart

Black Walnut

Produces juglone toxin that inhibits growth and can kill asters and most other plants

Dense Plantings of Tall Fescue

Aggressive grass that outcompetes asters for nutrients and releases allelopathic compounds

Autumn Olive

Invasive shrub that creates dense shade and outcompetes native asters for resources

Pests & Disease Resistance

Resistance

Good disease resistance, may get powdery mildew on lower leaves

Common Pests

Aphids, lace bugs, generally pest-resistant

Diseases

Powdery mildew, rust, white smut (rarely serious)

Troubleshooting New England Aster

What you'll see, why it happens, and what to do about it.

White powdery coating on leaves and stems, usually appearing mid-summer on lower foliage first

Likely Causes

Powdery mildew (Golovinomyces cichoracearum) — worsened by poor airflow and warm, humid days with cool nights
Plants spaced too close together, under 24 inches apart

What to Do

1.Cut affected stems back by one-third in late June or early July — this also encourages bushier growth and more blooms
2.Space plants at least 24-36 inches apart and thin any crowded clumps in spring
3.If it's severe, apply a dilute neem oil spray (2 tbsp per gallon) every 7-10 days until symptoms stop spreading

Orange or rust-colored pustules on the undersides of leaves, with yellow spotting on top

Likely Causes

Aster rust (Coleosporium asterum) — a fungal pathogen that spreads by spores in wet conditions
Overhead watering or prolonged leaf wetness

What to Do

1.Remove and bag affected leaves — don't compost them
2.Switch to drip irrigation or water at the base to keep foliage dry
3.Apply a sulfur-based fungicide if infection is widespread; follow label intervals, typically every 7-14 days

Stippled, bronzed, or bleached-looking foliage, sometimes with tiny dark specks on leaf undersides

Likely Causes

Lace bugs (Corythucha marmorata) — common aster pest; they feed on cell contents from the underside of leaves
Drought stress, which makes plants more susceptible to lace bug feeding damage

What to Do

1.Flip leaves and look for the flat, lacy-winged adults and dark excrement spots — confirm the pest before treating
2.Knock them off with a strong spray of water from a hose; repeat every 3-4 days for two weeks
3.Keep plants watered to 1-1.5 inches per week during dry spells — stressed plants take more damage

Soft, curled new growth; sticky residue on stems and leaves; ants moving up and down the plant

Likely Causes

Aphid colonies (commonly Uroleucon or Macrosiphum species) congregating on tender shoot tips
Ants farming the aphids for honeydew, which discourages natural predator activity

What to Do

1.Blast colonies off with a firm stream of water — do this in the morning so foliage dries quickly
2.If colonies persist after 5-7 days, apply insecticidal soap directly to affected stems; avoid spraying open flowers where pollinators are foraging
3.Plant yarrow or wild bergamot within a few feet to draw in parasitic wasps that will knock back aphid populations on their own

Frequently Asked Questions

When should I plant New England Aster?▼

Plant in spring after the last frost or in early fall (6-8 weeks before first frost). Fall planting is ideal in most regions as it allows plants to establish strong root systems before winter. Seeds can be direct-sown in fall for natural stratification, or started indoors in late winter and transplanted after frost danger passes.

Is New England Aster good for beginner gardeners?▼

Yes, it's an excellent choice for beginners. It's rated easy to moderate in difficulty, extremely hardy, and tolerates a wide range of soil conditions including clay. Once established, it requires minimal maintenance, rarely needs supplemental watering, and self-seeds reliably. It's also very pest-resistant compared to many ornamentals.

Can you grow New England Aster in containers?▼

While possible, container growing is not ideal for this variety. New England Aster prefers in-ground planting where its deep roots can establish fully. If growing in containers, use large pots (20+ gallons) with drainage holes and well-draining soil. Container plants may need more frequent watering and division every 2-3 years to maintain vigor.

How tall does New England Aster grow?▼

Mature plants typically reach 3-6 feet tall, making them excellent for creating dramatic backdrops in gardens and meadows. Height depends on growing conditions, soil quality, and moisture availability. Taller varieties may benefit from staking in windy locations. Plants can be cut back in early summer to encourage bushier growth and fuller flowering.

Why is New England Aster important for pollinators?▼

It's essential for monarch butterfly migration in fall, providing crucial nectar when most other flowers have finished blooming. Over 100 native bee species visit the flowers for pollen and nectar. By planting New England Aster, you directly support pollinator populations during a critical time when food sources are scarce.

What light conditions does New England Aster need?▼

New England Aster thrives in full sun to partial shade, requiring a minimum of 4 hours of direct sunlight daily, though 6+ hours is ideal for maximum blooms and plant vigor. It tolerates afternoon shade in hot climates. Plants grown in insufficient light may become leggy and produce fewer flowers.