Cirsium spinosissimum

Cirsium spinosissimum

Native to:
Austria | France | Germany | Italy | NW. Balkan Pen. | Switzerland

📍 View on iNaturalist →

Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Asteraceae
Genus:
Cirsium
Species:
Cirsium spinosissimum

Growth Characteristics

Height:
100 cm
Drought Tolerance:
Low
Bloom Months:
jul,aug,sep
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
Deer Resistant:
Yes

Source: deepseek-v4-flash

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–60 days
Germination Time:
14–30 days
Notes:
Seeds germinate after cold stratification; sow in spring.

Source: deepseek-v4-flash

ORGHPS Germination Guide: Sow @ 10C.

Source: Ontario Rock Garden & Hardy Plant Society