Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Asteraceae

Genus:

Silphium

Species:

Silphium asperrimum

Growth Characteristics

Growth Habit:

Forb/herb

Height:

180 cm

Drought Tolerance:

High

Bloom Colors:

yellow

Keystone Species Ranking

Pollen Specialist Bee Keystone:

★★☆☆☆ Native pollen specialist bee species supported by this genus (NWF)

Garden & Ecology Notes

Wildlife Value:

birds, butterflies, bees

Source: DeepSeek deepseek-chat

Propagation & Germination

Stratification:

Cold/moist stratification required — 30–60 days

Germination Time:

14–30 days

Notes:

Seeds benefit from cold moist stratification for 30-60 days to improve germination.

Source: DeepSeek deepseek-chat