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Healthy Home Gardening
 
Canada Thistle, chardon du Canada
Compositae
Cirsium spp.


DrPerry
DrPerry
Type Categories Useful Parts

Shrub

Compositae Family

Cirsium Genus

Location

Origin: Eurasia

U.S. Distribution: Throughout northern half of U.S.



General Information

Height: Up to 4 ft. tall

Foliage: Alternate, oblong or lancolate, crinkled edges and spiny margins, somewhat hairy underneath

Flowers: Flower heads dioecious, compact in corymbose clusters, terminal and axillary, rose-purple disk flowers

Bloom time: July to October

Habitat: Pastures and meadows

Soil: Likes rich, heavy soils



"University of Vermont Extension"
This pest causes problems by:
Other: Propagates by creeping roots and rhizomes, hard to control because each piece can give rise to a new plant. Declared a noxious weed in many states.
How to get rid of it:




Canada Thistle, chardon du Canada - Pests
Canada Thistle, chardon du Canada - Rosette form



Canada Thistle, chardon du Canada - Pests
Canada Thistle, chardon du Canada - Pests - May 17, 2009

Comment: Canada Thistle, chardon du Canada, Cirsium spp.

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