Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Asteraceae

Genus:

Cirsium

Species:

Cirsium douglasii var. douglasii

Growth Characteristics

Height:

180 cm

Drought Tolerance:

Medium

Bloom Months:

may,jun,jul,aug

Bloom Colors:

pink, purple, magenta

Keystone Species Ranking

Pollen Specialist Bee Keystone:

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

Garden & Ecology Notes

Wildlife Value:

bees, butterflies, hummingbirds, birds (seed), native pollinators

Fire Ecology:

Fire adapted — tolerates or benefits from fire

Fire Notes:

Taprooted species that can resprout from root crown after fire. Benefits from fire clearing competition in meadow and grassland habitats.

Propagation & Germination

Stratification:

Cold/moist stratification required — 30–60 days

Germination Time:

14–30 days

Notes:

Seeds benefit from light exposure during germination. Stratification improves germination rates but is not absolutely required for all seed lots.

The above propagation data sourced from Claude AI