Marsh Thistle
Cirsium palustre
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Asteraceae
- Genus:
- Cirsium
- Species:
- Cirsium palustre
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb
- Height:
- 4-6 ft
- Light Requirements:
- Full Sun
- Drought Tolerance:
- High
- Bloom Months:
- jun, aug
- Bloom Colors:
- purple
Native Range
United States: Massachusetts, Michigan, New Hampshire, New York, Wisconsin, Canada: British Columbia, Nova Scotia, Ontario, Quebec
Keystone Species Ranking
- Bee Keystone:
- ★★☆☆☆ Based on number of native bee species using this genus for pollen and nectar (Source: National Wildlife Federation)
Soil Requirements
- Soil Type:
- wet, peaty, nutrient-rich soil
- pH:
- 4.5 - 6.5 (acidic to slightly acidic)
- Drainage:
- tolerates poor drainage
- Moisture:
- consistently moist
- Notes:
- commonly found in marshes and wet meadows