Oneflower Helianthella
Helianthella uniflora
Matt Lavin from Bozeman, Montana, USA
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Asteraceae
- Genus:
- Helianthella
- Species:
- Helianthella uniflora
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb
- Height:
- 4-6 ft
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Medium
- Bloom Months:
- may, jun, jul
- Bloom Colors:
- Yellow
Native Range
United States: Colorado, Idaho, Montana, New Mexico, Nevada, Oregon, Utah, Washington, Wyoming, Canada: British Columbia
Host Plant for Caterpillars
Suleima baracana, Suleima daracana
Reported Fauna Sightings
Bees: Brown-belted bumble bee (Bombus griseocollis), Brown-belted bumble bee (Bombus griseocollis), Central bumble bee (Bombus centralis), Central bumble bee (Bombus centralis), Hunt's bumble bee (Bombus huntii), Hunt's bumble bee (Bombus huntii), Indiscriminate cuckoo bumble bee (Bombus insularis), Indiscriminate cuckoo bumble bee (Bombus insularis), Nevada bumble bee (Bombus nevadensis), Nevada bumble bee (Bombus nevadensis), Red-belted bumble bee (Bombus rufocinctus), Red-belted bumble bee (Bombus rufocinctus), Two-form bumble bee (Bombus bifarius), Two-form bumble bee (Bombus bifarius), van Dyke bumble bee (Bombus vandykei), van Dyke bumble bee (Bombus vandykei), Yellow bumble bee (Bombus fervidus), Yellow bumble bee (Bombus fervidus), Yellow head bumble bee (Bombus flavifrons), Yellow head bumble bee (Bombus flavifrons)
Soil Requirements
- Soil Type:
- well-drained, rocky or sandy loam
- pH:
- 6.0 - 7.5 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- prefers open, sunny habitats
Germination Information
Pre-treatment: Seeds require a cold and moist treatment of 2-4 Celsius for 2-6 weeks or 45-90 days for optimal germination. However, some seeds may germinate without pre-treatment.
Establishment: Germination rates and times can vary significantly depending on pre-treatment and environmental conditions. Some protocols suggest that untreated seeds may take longer to germinate and have lower overall germination rates. Seeds collected in different regions may have different germination requirements.
Source: npn.rngr.net