trefle.io · Taken Sep 11, 2018 by jose (cc-by-sa)
Onagraceae
Great willowherb
Epilobium hirsutum
Also known as Epilobium mirei, Chamaenerion grandiflorum, Epilobium serratum, Epilobium hirsutum var. subglabrum
Native Plants · Wildflower · Perennial · Pink · Flowers · Wetland · Pollinator · Native · Naturalized · Spreading
Great willowherb is an easy-care perennial that thrives in moist soils and partial shade. It produces attractive pink-purple flowers that attract pollinators throughout summer. Best suited for naturalized areas and wildlife gardens.
Growing conditions
The details behind the basics
- Daily light
- 6 hours
- Watering
- Keep soil consistently moist but not waterlogged · Every 5-7 days in growing season
- Maintenance
- Low
- Soil
- loam
- Soil pH
- 7.5–8
- Temperature
- -30°F to 95°F
- Cycle
- Perennial
- Propagation
- Seed
Hardiness
USDA 4a-10b
Form & growth
Mature size and habit
- Mature height
- 2 ft – 5 ft
- Spread
- 3 ft
- Spacing
- 18 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- No
- Foliage
- Medium
Ecology & origin
Where it belongs and what it brings
- Native to
- Afghanistan, Albania, Algeria, Altay, Angola, Austria, Baleares, Baltic States, Belarus, Belgium, British Columbia, Bulgaria, Burundi, Canary Is., Cape Provinces, Cape Verde, Central African Repu, Central European Rus, Chad, China North-Central
- Attracts
- Bees, Butterflies
Sources: trefle, usda
More Epilobium
Related plants from the same genus
Epilobium angustifolium subsp. angustifolium
Epilobium angustifolium subsp. angustifolium
Partial Sun · Moderate · Fast
Square-stemmed willowherb
Epilobium tetragonum
Partial Sun · Moderate · Moderate
Hoary willowherb
Epilobium parviflorum
Partial Sun · Moderate · Moderate
American willowherb
Epilobium ciliatum
Partial Sun · Moderate · Moderate
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