// SPECIES PROFILE · PERENNIAL · NATIVE

Ontario aster

Symphyotrichum ontarionis

Ontario aster (Symphyotrichum ontarionis) is a perennial in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 2b–10a. Mature size 6"–4'.

// QUICK FACTS

Family: —
Group: perennial
Native range: Native to 23 U.S. states, including AL, AR, DE, GA, IA, IL…
USDA hardiness: Zones 2b–10a
Mature size: 6"–4'
Sun: —
Water: —
Bloom: —
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Ontario aster (Symphyotrichum ontarionis) — *Symphyotrichum ontarionis* — Ontario aster. Photo by davecz2 via Wikimedia Commons (CC BY-SA 4.0).

Field Notes

[ growing · ecology · siting · care ]

Ontario aster (Symphyotrichum ontarionis) is a perennial in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 2b–10a. Mature size 6"–4'.

Why it's on this list: native species profile. Native-range data from the Lady Bird Johnson Wildflower Center (NPIN), cross-checked against iNaturalist observations. Part of Rooted Revival's regional native plant catalog — true natives for Oklahoma, Arkansas, Missouri and Kansas.

Companion Planting

[ guild · polyculture · cross-layer pairings ]

In the same native range, ontario aster pairs naturally with: Broadleaf Arrowhead (Sagittaria latifolia), Butterfly Milkweed (Asclepias tuberosa), Common Blue Violet (Viola sororia), Common Boneset (Eupatorium perfoliatum).