Species

Symphyotrichum novi-belgiiNew York Aster

1 other cultivar

‘Wood's Light Blue’Wood's Light Blue Aster

perennialN. America Native

New York Aster

Symphyotrichum novi-belgii 'Rosaperle'

The Story

Plant Bio

Symphyotrichum novi-belgii, commonly known as the New York aster, is a clump-forming deciduous perennial native to eastern North American wetlands and coastal areas. It produces upright, branching stems clad in smooth, lance-shaped dark green leaves that support dense clusters of daisy-like flower heads in the fall.

'Rosaperle' is distinguished by its semi-double to double basket-shaped flower heads in shades of lavender-pink to bright pink. This cultivar grows to a height of about 47 inches, forming a bushy, upright mound that provides late-season color.

Uses & Benefits:

Provides a dense, late-season display of double pink flowers on upright, bushy stems.

Thrives in heavy clay and moist soils where other perennials might struggle with poor drainage.

Attracts and supports native bees, butterflies, and other beneficial insect pollinators in late summer and fall.

SpeciesSymphyotrichum novi-belgiiNew York Aster

Essentials

At a Glance

Plant Type

Perennial

Height

47"

Width

24"

Light

Full Sun

Zones

4, 5, 6, 7, 8

Water

Medium

Humidity

Moderate

Lifespan

Perennial

Native To

North America

Toxicity

Non-toxic

Bloom period

Fall

In flower about 3 months of the year

Planting

How to Grow

Select a planting site in full sun with fertile, moist, well-drained soil.
Space plants at least 2 feet apart to ensure excellent air circulation and minimize powdery mildew.
Apply a balanced organic fertilizer in spring to support vigorous growth.
Divide the clumps every three years in early spring to maintain vigor and prevent central die-out.

Pro Tip

Pinch or cut stems back by half in late spring to encourage a sturdier, self-supporting habit and prevent the tall flowering stems from flopping in late summer.

Keep It Thriving

Care Guide

Do

Water regularly to keep the soil evenly moist, especially during dry summer spells.
Cut back old stems to the ground in late winter or early spring before new growth emerges.

Don't

Do not crowd plants in enclosed or stagnant garden corners where powdery mildew can thrive.
Avoid overhead watering; apply water directly to the soil to keep the foliage dry.

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Divide
Fertilize
Pest Check
Pinch
Spring Cleanup

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Cottage GardensRain GardensCoastal GardensLate-Season BordersCut Flower Gardens

Companion Plants

Solidago Echinacea purpurea Rudbeckia fulgida

Multiply

Propagation Methods

Good to Know

Common Questions

New York Aster questions

What zones can New York Aster grow in?

New York Aster is hardy in USDA Zones 4–8. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is New York Aster deer resistant?

Yes — New York Aster is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does New York Aster bloom?

New York Aster typically blooms in fall through fall. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does New York Aster need full sun?

New York Aster does best in full sun (6+ hours).