Rattlesnakeweed

Hieracium venosum

Native to:
Canada, United States, Virgin Islands

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Asteraceae
Genus:
Hieracium
Species:
Hieracium venosum
USDA Symbol:
HIVE

Growth Characteristics

Life Cycle:
PerennialUSDA PLANTS Database
Growth Habit:
Forb/herbUSDA PLANTS Database
Height:
46 cmLady Bird Johnson Wildflower Center
Light Requirements:
Part Shade, ShadeAI-generated (Gemini)
Drought Tolerance:
HighAI-generated (Gemini)
Bloom Months:
may, jun, jul, aug, sepLady Bird Johnson Wildflower Center
Bloom Colors:
yellowLady Bird Johnson Wildflower Center

Wildlife Benefits

Bees:
★☆☆☆☆ Documented bee visitation (GBIF)
Butterflies & Moths:
★☆☆☆☆ Documented Lepidoptera association (GBIF)
Caterpillars:
★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)

Keystone Species Ranking

Pollen Specialist Bee Keystone:
★☆☆☆☆ Native pollen specialist bee species supported by this genus (NWF)

Host Plant for Caterpillars

eryngo borer moth (Papaipema eryngii)

Garden & Ecology Notes

Minimum Light:
Part ShadeAI-generated (Gemini)
Best Light:
Full Sun, Part SunAI-generated (Gemini)
Habitat:
Woodland, Temperate forest, Rocky outcropAI-generated (Gemini)
Wildlife Value:
bees, butterflies, mothsAI-generated (Gemini)
Deer Resistant:
YesAI-generated (Gemini)
Fire Ecology:
Fire adapted — tolerates or benefits from fireAI-generated (Gemini)
Ecology:
Commonly known as rattlesnake weed, it is characteristic of dry, acidic oak-pine woodlands and rocky slopes. Basal leaves feature striking purple-red veins, and flowers are visited by small native bees and syrphid flies.AI-generated (Gemini)

Soil Requirements

Soil:
sandyWikipedia
pH:
4.5 - 6.0 (acidic)AI-generated (Gemini)
Drainage:
well-drainedLady Bird Johnson Wildflower Center
Moisture:
dry to moderateAI-generated (Gemini)
Notes:
Prefers acidic, nutrient-poor sands, gravelly loams, and thin, rocky substrates derived from sandstone or shale.AI-generated (Gemini)

Propagation & Germination

Notes:
Seeds generally germinate readily with light and moisture; cold moist stratification for 30 to 60 days can improve and synchronize emergence.AI-generated (Gemini)

Where to Buy

Nationwide Seller