// SPECIES PROFILE · PERENNIAL · NATIVE

Prairie thermopsis

Thermopsis rhombifolia

Prairie thermopsis (Thermopsis rhombifolia) is a perennial in the — family. Native range includes OK — verified against the Lady Bird Johnson Wildflower Center native distribution database. Hardy in zones 2a–9a. Mature size 1"–18". Blooms May–Jun.

// QUICK FACTS

Family: —
Group: perennial
Native range: Native to 10 U.S. states, including CO, MT, ND, NE, NM, OK…
USDA hardiness: Zones 2a–9a
Mature size: 1"–18"
Sun: Full sun
Water: —
Bloom: May–Jun
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Prairie thermopsis (Thermopsis rhombifolia) — *Thermopsis rhombifolia* — Prairie thermopsis. Photo by Mason Brock (Masebrock) via Wikimedia Commons (Public domain).

Field Notes

[ growing · ecology · siting · care ]

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, prairie thermopsis pairs naturally with: Broadleaf Arrowhead (Sagittaria latifolia), Lady Fern (Athyrium filix-femina), Mexican Hat (Ratibida columnifera), New England Aster (Symphyotrichum novae-angliae).