North America Native Plant

Aster

Botanical name: Symphyotrichum ×schistosum

USDA symbol: SYSC2

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Aster ×schistosus Steele (pro sp.) (ASSC10)  âš˜  Aster schistosus Steele, database artifact (ASSC18)   

The Elusive Aster: Why Symphyotrichum ×schistosum Might Not Be Your Garden’s Next Star If you’ve stumbled across the name Symphyotrichum ×schistosum while researching native asters for your garden, you’ve discovered one of the more mysterious members of the aster family. This perennial wildflower, simply known as aster, represents a fascinating ...

The Elusive Aster: Why Symphyotrichum ×schistosum Might Not Be Your Garden’s Next Star

If you’ve stumbled across the name Symphyotrichum ×schistosum while researching native asters for your garden, you’ve discovered one of the more mysterious members of the aster family. This perennial wildflower, simply known as aster, represents a fascinating but challenging choice for the home gardener.

What Makes This Aster Special (and Tricky)

Symphyotrichum ×schistosum is what botanists call a hybrid species – that little × symbol is the giveaway. This means it’s a natural cross between two different aster species, which makes it genetically unique but also quite rare in the wild. As a native perennial forb, it belongs to that wonderful group of non-woody flowering plants that die back each winter and return fresh each spring.

Where You’ll Find It (Spoiler: You Probably Won’t)

This aster has one of the most limited native ranges you’ll encounter – it’s only documented in Kentucky and Virginia. Even within these states, finding it in the wild would be like discovering a needle in a haystack, which gives you a hint about why it’s not exactly flying off nursery shelves.

The Reality Check: Why This Aster Isn’t Garden-Ready

Here’s where we need to have an honest conversation. While Symphyotrichum ×schistosum is technically a native plant, it’s so rare and poorly documented that virtually no information exists about:

  • How to grow it successfully in garden settings
  • What growing conditions it prefers
  • Its hardiness zones
  • Its mature size or appearance
  • Its value to pollinators and wildlife
  • Where to source plants or seeds

Better Alternatives for Your Native Garden

If you’re drawn to native asters (and who isn’t?), consider these well-documented and garden-friendly alternatives that will give you the native plant benefits you’re seeking:

  • New England Aster (Symphyotrichum novae-angliae) – A showstopper with purple-pink blooms
  • Smooth Blue Aster (Symphyotrichum laeve) – Elegant blue flowers and drought tolerance
  • Aromatic Aster (Symphyotrichum oblongifolium) – Compact size perfect for smaller gardens
  • White Oldfield Aster (Symphyotrichum pilosum) – Clouds of tiny white flowers

The Bottom Line

While Symphyotrichum ×schistosum holds botanical interest as a natural hybrid, it’s simply not practical for home gardeners. The lack of available plants, growing information, and its extreme rarity make it more of a scientific curiosity than a garden possibility. Your native garden will thrive much better with one of the many well-established aster species that offer proven beauty, wildlife value, and reliable growing information.

Sometimes the most responsible thing we can do as native plant enthusiasts is to appreciate rare species from afar while choosing their more common cousins for our gardens. Your local pollinators will thank you just the same!

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 ×schistosum (Steele) G.L. Nesom [cordifolium × laeve] - aster

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