Approximately 650 seeds per gram
seed-counts are only a guide, not to be used for accurate calculations.
B and T World Seeds' reference number:
USDA average, annual, minimum temperature Zone:4
Type of plant - biennial, the leaves form a low rosette the first year, growing vertically and flowering the following spring.
Flower: PURPLE, in 3cm. dia. capitula
Fruit: achene to 4mm. long
Height in meters: 1.5
Common names for Cirsium palustre:
is included in the following B and T World Seeds flowering plant categories:
12: British Native Wild Flowers Shrubs and Trees
56: Aquatic and Semi aquatic Plant Seeds
72: Russian Native and Introduced Plants (Central)
77: Central European Native and Introduced Plants
86: Natives of U.S.North East
185: Plant Species whose germination is improved by Smoke
Cirsium palustre seeds will usually germinate in 15-18 days. Sow seeds about 3mm deep in a Well drained seed sowing mix at about 22°C.