Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Asteraceae

Genus:

Cirsium

Species:

Cirsium spinosissimum

Growth Characteristics

Height:

60 cm

Drought Tolerance:

Low

Bloom Months:

jul,aug

Bloom Colors:

yellow, white

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

Propagation & Germination

Stratification:

Cold/moist stratification required — 30–60 days

Germination Time:

14–30 days

Notes:

Seeds require light for germination; surface sow or barely cover. Cold stratification improves germination rates.

The above propagation data sourced from Claude AI