Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Asteraceae

Genus:

Cirsium

Species:

Cirsium congdonii

Growth Characteristics

Height:

120 cm

Drought Tolerance:

High

Bloom Months:

jun,jul,aug,sep

Bloom Colors:

pink, purple

Keystone Species Ranking

Pollen Specialist Bee Keystone:

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

Garden & Ecology Notes

Wildlife Value:

bees, butterflies, birds

Deer Resistant:

Yes

Fire Ecology:

Fire adapted — tolerates or benefits from fire

Fire Notes:

Responds positively to fire; seeds germinate in post-fire conditions.

Source: deepseek-v4-flash

Propagation & Germination

Stratification:

Cold/moist stratification required — 30–60 days

Germination Time:

14–30 days

Notes:

Seeds germinate readily after cold stratification; surface sow on well-drained medium.

Source: deepseek-v4-flash