Swamp Onion
Allium madidum
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Amaryllidaceae
- Genus:
- Allium
- Species:
- Allium madidum
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Geophyte
- Height:
- 6 in - 1 ft
- Light Requirements:
- Full Sun
- Drought Tolerance:
- High
- Bloom Months:
- may, jun, jul
- Bloom Colors:
- White, Pink, Green
Native Range
United States: Idaho, Oregon
Reported Fauna Sightings
Bees: Fuzzy-horned bumble bee (Bombus mixtus), Fuzzy-horned bumble bee (Bombus mixtus), Indiscriminate cuckoo bumble bee (Bombus insularis), Indiscriminate cuckoo bumble bee (Bombus insularis), Two-form bumble bee (Bombus bifarius), Two-form bumble bee (Bombus bifarius), Yellow head bumble bee (Bombus flavifrons), Yellow head bumble bee (Bombus flavifrons)
Soil Requirements
- Soil Type:
- moist, fertile, well-drained loam
- pH:
- 5.5 - 7.0 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- consistently moist
- Notes:
- prefers habitats near streams or wetlands