Thurber's Sneezeweed

Helenium thurberi

Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Asteraceae
Genus:
Helenium
Species:
Helenium thurberi

Growth Characteristics

Life Cycle:
Annual
Growth Habit:
Forb/herb
Height:
3-4 ft
Light Requirements:
Full Sun
Drought Tolerance:
Medium
Bloom Months:
mar, apr, may, jun, jul, aug, sep
Bloom Colors:
Red, Yellow, Green, Brown

Native Range

United States: Arizona

Keystone Species Ranking

Bee Keystone:
★★★★☆ Based on number of native bee species using this genus for pollen and nectar (Source: National Wildlife Federation)

Soil Requirements

Soil Type:
well-drained, sandy or rocky soil
pH:
6.0 - 7.5 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
native to arid regions, prefers open areas

Germination Information

Pre-treatment: Cold-moist stratification for 30 days at 1–5°C (34–41°F).

Source: OpenAI GPT-4o