// SPECIES PROFILE · PERENNIAL · NATIVE

Hoary frostweed

Helianthemum bicknellii

Hoary frostweed (Helianthemum bicknellii) is a perennial in the — family. Native range includes AR, KS, MO. Hardy in zones 2a–9a. Mature size 6"–2'. Blooms Jun–Jul.

// QUICK FACTS

Family: —
Group: perennial
Native range: Native to 32 U.S. states, including AR, CO, CT, DE, GA, IA…
USDA hardiness: Zones 2a–9a
Mature size: 6"–2'
Sun: —
Water: —
Bloom: Jun–Jul
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Hoary frostweed (Helianthemum bicknellii) — *Helianthemum bicknellii* — Hoary frostweed. Photo via iNaturalist — (c) Douglas Goldman, some rights reserved (CC BY-SA).

Field Notes

[ growing · ecology · siting · care ]

Hoary frostweed (Helianthemum bicknellii) is a perennial in the — family. Native range includes AR, KS, MO. Hardy in zones 2a–9a. Mature size 6"–2'. Blooms Jun–Jul.

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, hoary frostweed pairs naturally with: Broadleaf Arrowhead (Sagittaria latifolia), Gray Goldenrod (Solidago nemoralis), Lady Fern (Athyrium filix-femina), New England Aster (Symphyotrichum novae-angliae).