Rock Onion

Allium macrum

Rock Onion

Dave Powell, USDA Forest Service, Bugwood.org

Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Amaryllidaceae
Genus:
Allium
Species:
Allium macrum

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Geophyte
Height:
1-2 ft
Light Requirements:
Full Sun
Drought Tolerance:
High
Bloom Months:
apr, may
Bloom Colors:
White, Red, Pink

Native Range

United States: Oregon, Washington

Soil Requirements

Soil Type:
well-drained, rocky or sandy soil
pH:
6.0 - 7.5 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
native to rocky slopes and open woodlands