Hoary Frostweed
Crocanthemum bicknellii
Found in woodlands, glades, barrens, rock outcrops, grassy balds, serpentine grasslands, to at least 1500m in elevation. Weakley, Flora of the Southeastern United States (2025), Northern Tier edition What its natural habitat tells you
Native to West Virginia. How scores work Is it native here?
Profile 76%
- Height
- 8–24 inches
- Light
- Partial shade, Full sun
- Soil moisture
- Dry
No photograph yet. Looking for an old drawing…
At a glance
- Life cycle
- Perennial
- Fruiting season
- August to October
Not yet recorded · Spread · Leaves · Bloom
Bloom: NC species account not read yet.
Spread and leaves: no source found yet.
This plant is missing most of its facts, so Quercus is looking them up in old botany books.
County records are not available.
Natural habitats
Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.

Forest or woodland where the source does not say how moist or dry.
Glades, barrens and outcrops on mafic or serpentine rock
Open, thin-soil openings, outcrops and cliffs on dark, magnesium- or iron-rich rock such as serpentine, diabase or gabbro.
Treeless grassy or shrubby summits and ridges in the high mountains.
Also found with this plant
Wildlife whose habitat models include habitats this plant grows in, in West Virginia. Shared habitat, not food. 126 animals.
- American GoldfinchCarduelis tristis
- American KestrelFalco sparverius
- American RobinTurdus migratorius
- Blue GrosbeakPasserina caerulea
- Chimney SwiftChaetura pelagica
- Chipping SparrowSpizella passerina
- Common NighthawkChordeiles minor
- Common RavenCorvus corax
- Cooper's HawkAccipiter cooperii
- Dark-eyed JuncoJunco hyemalis
- Eastern KingbirdTyrannus tyrannus
- European StarlingSturnus vulgaris
- Great Horned OwlBubo virginianus
- Indigo BuntingPasserina cyanea
- Northern CardinalCardinalis cardinalis
- Northern FlickerColaptes auratus
- Northern MockingbirdMimus polyglottos
- Purple FinchCarpodacus purpureus
- Red-tailed HawkButeo jamaicensis
- Sharp-shinned HawkAccipiter striatus
- Spotted SandpiperActitis macularius
- Turkey VultureCathartes aura
- Wild TurkeyMeleagris gallopavo
- Yellow-breasted ChatIcteria virens
Who uses this plant?
2CaterpillarsGenus host records with ranges including WV
Genus host records with ranges including WV · Crocanthemum
- Anavitrinella pampinariaCommon Gray, Cranberry Spanworm
- Platynota flavedanaBlack-Shaded Platynota
2BeesSoutheastern regional records
Southeastern regional records · Crocanthemum
Individual names are not available yet.
Noori, Seltmann & Orr 2026, A curated and integrated dataset for exploring global bee-plant interactions (GloBI), Zenodo, CC BY 4.0No records yet · Ants · Beetles · Flies · Adult butterflies / moths · Other wasps · Other insects
Plant details
- Family
- Cistaceae
- Flower color
- Yellow
- Fruit begins
- August
- Fruit ends
- October
Safety has not been reviewed for this plant; check toxicity and thorns before planting.
Growing sources and scope
- Flower color · “Yellow” · Lady Bird Johnson Wildflower Center
- Fruit begins · “August” · Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition · Carolinas and Georgia
- Fruit ends · “October” · Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition · Carolinas and Georgia
- Height · “8–24 inches” · Minnesota Wildflowers
- Life cycle · “Perennial” · Minnesota Wildflowers
- Light · “Partial shade; Full sun (documented habitat)” · Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition · Carolinas and Georgia
- primary_flower_color · “yellow” · Lady Bird Johnson Wildflower Center
- Soil · “Dry (documented habitat)” · Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition · Carolinas and Georgia
Also known as
Helianthemum bicknellii
Conservation status
| West Virginia rank | SH |
|---|---|
| Global rank | G5 |
| WV status | Not verified |
| Federal status | Not verified |
Will it fit your yard?
Check this plant against your county, sun and soil moisture. Conditions are checked in your browser.
Sources
- NatureServe Explorer
- USDA PLANTS
- Vascular Plants of North Carolina (NC Natural Heritage Program)
- Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition
- West Virginia occurrence source
- Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
- Noori, Seltmann & Orr 2026, A curated and integrated dataset for exploring global bee-plant interactions (GloBI), Zenodo, CC BY 4.0
- Smith, Bachelder, Russell, Morales, Mosher & Seltmann 2024, Bee-Specialization-Modeling v0.6.1 (specialist host table compiled from J. Fowler's pollen specialist bee lists), Zenodo, CC BY 4.0
- Hurlbert, Olsen, Sawyer & Winner 2021, Avian Diet Database, Scientific Data 8: 260 (CC0)
- Narango, Tallamy & Shropshire 2020, Few keystone plant genera support the majority of Lepidoptera species, Nature Communications

























