Symphyotrichum oblongifolium 'Raydon’s Favorite'

Species

Symphyotrichum oblongifoliumAromatic Aster

2 other cultivars

perennialN. America Native

Raydon's Favorite Aromatic Aster

Symphyotrichum oblongifolium 'Raydon’s Favorite'

The Story

Plant Bio

Symphyotrichum oblongifolium, or Aromatic Aster, is a species of aster native to the central and eastern United States. It is known for its dense, mounding habit and aromatic foliage that releases a scent when crushed.

A superior selection prized for its exceptionally heavy bloom of violet-blue flowers, excellent resistance to powdery mildew, and a compact, sturdy habit that prevents flopping.

Uses & Benefits:

Vivid purple flowers attract pollinators and add vibrant color to gardens.

Drought-tolerant and low-maintenance, suitable for sustainable landscaping.

Supports native bees, butterflies, and other beneficial insects.

SpeciesSymphyotrichum oblongifoliumAromatic Aster

Essentials

At a Glance

Plant Type

Perennial

Height

30 inches

Width

30 inches

Light

Full Sun

Zones

4, 5, 6, 7, 8

Water

Low to Medium

Humidity

Average

Lifespan

Perennial

Native To

North America

Toxicity

Non-toxic

Planting

How to Grow

Tuck seeds into well-draining soil in early spring for best germination.
Mist cuttings regularly to maintain humidity and promote rooting.
Water consistently during dry spells to encourage healthy growth.
Fertilize with a balanced, slow-release fertilizer in spring and mid-summer.
Prune back after flowering to maintain shape and encourage new blooms.
Divide clumps every 3-4 years in early spring or fall for rejuvenation.

Pro Tip

Use organic compost to enrich soil and promote vibrant flowering.

Keep It Thriving

Care Guide

Do

Plant in full sun for optimal flowering 🌞
Water regularly, especially during dry periods 💧
Deadhead spent blooms to encourage more flowers
Mulch to retain soil moisture and suppress weeds
Divide every 3-4 years to maintain plant vigor

Don't

Avoid overwatering, which can cause root rot ❌
Don’t prune in late fall, wait until early spring
Refrain from fertilizing with high nitrogen fertilizers that promote foliage over blooms ❌
Don’t plant in overly shaded areas
Avoid neglecting pest control in humid conditions

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Divide
Mulch
Pinch
Plant
Spring Cleanup

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Wildflower meadow with vibrant purple bloomsPerennial border for late summer colorDrought-tolerant plant for xeriscaping

Companion Plants

Echinacea purpurea Rudbeckia hirta Salvia nemorosa Coreopsis verticillata Gaillardia pulchella

Multiply

Propagation Methods

Good to Know

Common Questions

Raydon's Favorite Aromatic Aster questions

What zones can Raydon's Favorite Aromatic Aster grow in?

Raydon's Favorite Aromatic 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 Raydon's Favorite Aromatic Aster deer resistant?

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

When does Raydon's Favorite Aromatic Aster bloom?

Raydon's Favorite Aromatic Aster typically blooms in late summer to fall through early fall. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Raydon's Favorite Aromatic Aster need full sun?

Raydon's Favorite Aromatic Aster does best in full sun (6+ hours).

Is Raydon's Favorite Aromatic Aster drought tolerant?

Yes — once established (usually after the first full season), Raydon's Favorite Aromatic Aster handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.