North America Native Plant

Calico Aster

Botanical name: Symphyotrichum lateriflorum var. angustifolium

USDA symbol: SYLAA

Life cycle: perennial

Habit: forb

Native status: Native to Canada ⚘ Native to the lower 48 states  

Synonyms: Aster agrostifolius Burgess (ASAG4)  ⚘  Aster lateriflorus (L.) Britton var. angustifolius Wiegand (ASLAA)   

Calico Aster: Your Garden’s Late-Season MVP When most flowers are calling it quits for the season, one charming native steps up to keep the show going. Meet the calico aster (Symphyotrichum lateriflorum var. angustifolium), a delightful perennial that proves good things really do come to those who wait. What Makes ...

Calico Aster: Your Garden’s Late-Season MVP

When most flowers are calling it quits for the season, one charming native steps up to keep the show going. Meet the calico aster (Symphyotrichum lateriflorum var. angustifolium), a delightful perennial that proves good things really do come to those who wait.

What Makes Calico Aster Special?

Don’t let the scientific name intimidate you – this little beauty is as approachable as they come. Calico aster is a native North American perennial forb, which is just a fancy way of saying it’s a non-woody plant that comes back year after year. You might also see it listed under its old botanical names, Aster agrostifolius or Aster lateriflorus var. angustifolius, but a rose by any other name still smells as sweet!

Where Does It Call Home?

This adaptable native has quite the impressive range. You’ll find calico aster naturally growing across much of eastern North America, from Canada down through the northeastern United States. Specifically, it thrives in Ontario, Connecticut, Indiana, Kentucky, Maine, Massachusetts, Michigan, New Hampshire, New Jersey, New York, Vermont, and Wisconsin.

Why Your Garden Will Love Calico Aster

Picture this: clouds of tiny white flowers with subtle purple centers dancing on delicate stems in late summer and fall. That’s calico aster in all its glory! Here’s why this native deserves a spot in your landscape:

  • Late-season superstar: When other flowers are fading, calico aster is just getting started
  • Pollinator magnet: Bees, butterflies, and other beneficial insects absolutely love these blooms
  • Low maintenance: Once established, this tough native pretty much takes care of itself
  • Naturalizing champion: Perfect for wildflower gardens and prairie restorations
  • Versatile beauty: Works wonderfully in cottage gardens, pollinator gardens, and naturalized areas

Growing Calico Aster Successfully

The best part about calico aster? It’s refreshingly unfussy. This adaptable native is quite forgiving and will reward even novice gardeners with beautiful blooms.

Ideal Growing Conditions

Calico aster is wonderfully adaptable to various growing conditions, making it an excellent choice for gardeners dealing with challenging sites:

  • Light: Thrives in full sun to partial shade
  • Soil: Adapts to various soil types – not overly picky!
  • Water: Drought tolerant once established, though appreciates occasional watering
  • Climate: Hardy in USDA zones 3-8

Planting and Care Tips

Getting calico aster established in your garden is straightforward:

  • Timing: Plant in spring or fall for best results
  • Spacing: Give plants room to spread naturally
  • Maintenance: Minimal care required once established
  • Division: Divide clumps every few years to maintain vigor
  • Self-seeding: May naturalize through self-seeding – a bonus for wildlife gardens!

The Bottom Line

If you’re looking for a native plant that delivers late-season color, supports pollinators, and won’t demand constant attention, calico aster checks all the boxes. This charming perennial proves that sometimes the best garden additions are the ones that quietly do their job while providing maximum impact. Whether you’re creating a pollinator haven or simply want to extend your garden’s flowering season, calico aster is ready to become your new favorite native.

Remember, when you choose native plants like calico aster, you’re not just beautifying your space – you’re supporting local ecosystems and providing crucial resources for native wildlife. Now that’s what we call a win-win!

Calico 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 lateriflorum (L.) Á. Löve & D. Löve - calico aster

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