North America Native Plant

Rice Button Aster

Botanical name: Symphyotrichum dumosum var. subulifolium

USDA symbol: SYDUS2

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Aster dumosus L. var. subulifolius Torr. & A. Gray (ASDUS2)   

Rice Button Aster: A Delightful Native Wildflower for Your Garden If you’re looking to add some late-season charm to your native garden, meet the rice button aster (Symphyotrichum dumosum var. subulifolium) – a delightful perennial that brings clouds of tiny flowers when most other plants are calling it quits for ...

Rice Button Aster: A Delightful Native Wildflower for Your Garden

If you’re looking to add some late-season charm to your native garden, meet the rice button aster (Symphyotrichum dumosum var. subulifolium) – a delightful perennial that brings clouds of tiny flowers when most other plants are calling it quits for the year. Don’t let the somewhat intimidating scientific name fool you; this little beauty is as easygoing as they come!

What Makes Rice Button Aster Special?

Rice button aster is a native forb – essentially a non-woody perennial herb – that belongs to the vast and wonderful aster family. You might also see it listed under its former scientific name, Aster dumosus var. subulifolius, if you’re browsing older gardening references. This native gem is perfectly at home across a wide swath of the United States, naturally occurring in states from Maine down to Texas and throughout much of the Southeast.

The plant gets its charming common name from its clusters of small, button-like flower heads that create a delicate, almost rice-like appearance when viewed from a distance. These tiny blooms typically appear in shades of white to pale purple, creating a soft, dreamy effect in the late summer and fall garden.

Why Your Garden (and Local Wildlife) Will Love It

Rice button aster is like that reliable friend who shows up exactly when you need them most. Just as many garden flowers are fading, this native beauty bursts into bloom, providing crucial late-season nectar for butterflies, native bees, and other pollinators preparing for winter. It’s a true wildlife magnet that supports the local ecosystem while adding visual interest to your landscape.

From a design perspective, rice button aster works beautifully as:

  • A naturalized ground cover in wildflower meadows
  • An edge plant in native garden borders
  • A filler in cottage-style gardens
  • A coastal garden specimen (it’s quite salt-tolerant!)

Growing Rice Button Aster Successfully

One of the best things about rice button aster is its adaptable nature. This hardy perennial thrives in USDA hardiness zones 4 through 9, making it suitable for gardeners across a broad geographic range. It’s particularly well-suited for coastal areas and can handle both sandy and clay soils with equal aplomb.

Ideal Growing Conditions

Rice button aster prefers full sun to partial shade and isn’t particularly fussy about soil type. Once established, it’s quite drought-tolerant, making it an excellent choice for low-maintenance landscapes. The plant may spread gradually through underground rhizomes, creating natural drifts over time – perfect if you’re aiming for that effortless, naturalized look.

Planting and Care Tips

Getting started with rice button aster is refreshingly simple:

  • Plant in spring after the last frost, spacing plants about 12-18 inches apart
  • Water regularly during the first growing season to help establish roots
  • Once established, minimal watering is needed except during extended droughts
  • Deadhead spent blooms if you prefer a tidier appearance, or leave them for wildlife
  • Divide clumps every 3-4 years in spring if desired

Is Rice Button Aster Right for Your Garden?

Rice button aster is an excellent choice for gardeners who appreciate native plants and want to support local wildlife. It’s particularly valuable if you:

  • Want late-season color and pollinator support
  • Prefer low-maintenance perennials
  • Are creating a coastal or naturalized garden
  • Enjoy plants with a delicate, cottage garden feel

While this charming native may not be the showiest plant in your garden, its reliable performance, wildlife benefits, and gentle beauty make it a worthy addition to any native plant collection. Sometimes the most valuable garden residents are the ones that quietly do their job while supporting the broader ecosystem – and rice button aster fits that description perfectly!

Rice Button Aster

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Asterales

Family

Asteraceae Bercht. & J. Presl - Aster family

Genus

Symphyotrichum Nees - aster

Species

Symphyotrichum dumosum (L.) G.L. Nesom - rice button aster

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA