St. Johnswort

Hypericum moserianum

St. Johnswort

Photo by David J. Stang

Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Clusiaceae
Genus:
Hypericum
Species:
Hypericum moserianum

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Shrub
Height:
2-3 ft
Light Requirements:
Full Sun
Drought Tolerance:
Medium
Bloom Months:
jun, sep
Bloom Colors:
yellow
Landscaping Shrub:
Yes

Native Range

United States: Oregon, Tennessee

Keystone Species Ranking

Caterpillar Keystone:
★★★☆☆ Based on number of butterfly and moth species using this genus as host plant (Source: National Wildlife Federation)

Soil Requirements

Soil Type:
rich, well-drained loamy soil
pH:
5.5 - 7.0 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
native to areas with well-drained soils