Tall Cottongrass
Eriophorum angustifolium
- Native to:
- Albania, Aleutian Is., Austria, Baltic States, Belarus, Belgium, Bulgaria, Canada, China, Czechia-Slovakia, Denmark, Finland, Føroyar, France, Germany, Greece, Greenland, Hungary, Iceland, Ireland, Italy, Kazakhstan, Korea, Kuril Is., Labrador, Netherlands, North Caucasus, Norway, NW. Balkan Pen., Poland, Portugal, Prince Edward I., Romania, Russia, Spain, Svalbard, Sweden, Switzerland, Transcaucasus, Türkiye, United States
iNaturalist: © taimyr (iNaturalist #68865691)






Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Cyperaceae
- Genus:
- Eriophorum
- Species:
- Eriophorum angustifolium
- USDA Symbol:
- ERAN6
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Graminoid
- Height:
- 60 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Low
- Bloom Months:
- apr,may,jun,jul
- Bloom Colors:
- white
Garden & Ecology Notes
- Wildlife Value:
- waterfowl, small mammals
- Deer Resistant:
- Yes
Soil Requirements
- Soil Type:
- peaty, nutrient-poor, waterlogged soil
- pH:
- 4.0 - 6.0 (acidic to slightly acidic)
- Drainage:
- tolerates poor drainage
- Moisture:
- consistently moist
- Notes:
- Common in bogs and wet meadows
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–42 days
- Notes:
- Requires light for germination. Seeds need constant moisture and cool temperatures.
The above propagation data sourced from Claude AI
Pre-treatment: Cold-moist stratification for 30 days at 1–5°C (34–41°F).
Source: Claude AI
ORGHPS Germination Guide: N Sow directly in the garden. Sow @ 20°C. Seed germinates within 3 months Requires light or the seed is very fine. Surface sow and expose to light. * peat based medium