Giant Coreopsis

Leptosyne gigantea

Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Asteraceae
Genus:
Leptosyne
Species:
Leptosyne gigantea

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb , Shrub , Subshrub
Height:
8-12 ft
Light Requirements:
Full Sun
Drought Tolerance:
High
Bloom Months:
mar, apr, may
Bloom Colors:
Yellow

Native Range

United States: California

Keystone Species Ranking

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

Host Plant for Caterpillars

orange tortrix moth (Argyrotaenia franciscana)

Soil Requirements

Soil Type:
sandy, well-drained, nutrient-poor soil
pH:
6.0 - 7.5 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
native to coastal sage scrub areas

Germination Information

Pre-treatment: Single-step cold-moist stratification for temperate woodland species. for 60–120 days

Source: OpenAI GPT-4o