Tall Cottongrass
Eriophorum angustifolium
- Native to:
- Albania, Aleutian Is., Austria, Baltic States, Belarus, Belgium, Bulgaria, Canada, China, Czechia-Slovakia, Denmark, Finland, Føroyar, France, Germany, Great Britain, 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
- Bloom Colors:
- white
Wildlife Benefits
- Butterflies & Moths:
- ★☆☆☆☆ Documented Lepidoptera association (GBIF)
Garden & Ecology Notes
- Wildlife Value:
- birds, small mammals
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:
- 14–30 days
- Notes:
- Seeds benefit from cold stratification; sow on moist peat surface and keep cool.
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
Where to Buy
Nationwide Seller
- Prairie Moon Nursery (nursery and seeds)