Stemless Thistle (European)
Cirsium acaule

Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Cirsium (SIR-see-um) (Info)
Species: acaule (a-KAW-lee) (Info)

Category:

Groundcovers

Perennials

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Unknown - Tell us

Where to Grow:

Unknown - Tell us

Height:

under 6 in. (15 cm)

Spacing:

Unknown - Tell us

Hardiness:

USDA Zone 3a: to -39.9 C (-40 F)

Sun Exposure:

Full Sun

Sun to Partial Shade

Light Shade

Danger:

Plant has spines or sharp edges; use extreme caution when handling

Bloom Color:

Violet/Lavender

Bloom Time:

Late Summer/Early Fall

Foliage:

Herbaceous

Other details:

May be a noxious weed or invasive

Soil pH requirements:

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

7.9 to 8.5 (alkaline)

8.6 to 9.0 (strongly alkaline)

over 9.1 (very alkaline)

Patent Information:

Unknown - Tell us

Propagation Methods:

From seed; direct sow outdoors in fall

Seed Collecting:

Allow seedheads to dry on plants; remove and collect seeds

Gardeners' Notes:

1
positive
0
neutrals
0
negatives
RatingContent
Positive

On Sep 3, 2010, DMersh from Perth
United Kingdom (Zone 7b) wrote:

Small ground hugging thistle native to Britain and adjacent areas of Europe, prefers calcareous (lime rich) soils, common on chalk downs.
Before identifying as stemless thistle be careful the plant isn't a very young thistle of some other species, they all start out at ground level and appear 'stemless' before they start to grow upwards.