// SPECIES PROFILE · PERENNIAL · NATIVE

Deam's rosinweed

Silphium integrifolium var. deamii

Deam's rosinweed (Silphium integrifolium var. deamii) is a perennial in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 3a–10a. Mature size 29"–6'. Blooms Jul–Sep.

// QUICK FACTS

Family: —
Group: perennial
Native range: Native to 21 U.S. states, including AL, AR, CO, IA, IL, IN…
USDA hardiness: Zones 3a–10a
Mature size: 29"–6'
Sun: Full sun
Water: —
Bloom: Jul–Sep
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Deam's rosinweed (Silphium integrifolium var. deamii) — *Silphium integrifolium var. deamii* — Deam's rosinweed. Photo via iNaturalist — (c) Chris, some rights reserved (CC BY-SA).

Field Notes

[ growing · ecology · siting · care ]

Deam's rosinweed (Silphium integrifolium var. deamii) is a perennial in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 3a–10a. Mature size 29"–6'. Blooms Jul–Sep.

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, deam's rosinweed pairs naturally with: Broadleaf Arrowhead (Sagittaria latifolia), Gray Goldenrod (Solidago nemoralis), Lady Fern (Athyrium filix-femina), Purple Prairie Clover (Dalea purpurea).