Kalm St. Johnswort

Scientific Name
Hypericum kalmianum
Credit

Sharon A. Yiesla

Last Review
Features

Bright yellow flowers (July- August); blue green leaves in summer; autumn color is yellow green.

Culture

Full sun; prefers moist to wet sites, but can tolerate some dryness; tolerates alkaline soil.

Plant Type
Minimum Height
Height Value
2.00
Height Unit
Feet
Maximum Height
Height Value
3.00
Height Unit
Feet
Minimum Width
Width Value
2.00
Width Unit
Feet
Maximum Width
Width Value
3.00
Width Unit
Feet
Mature Form

Rounded

Native Regions, Text

United States (and Illinois)

Soil Conditions
Foliage Color
Fall Foliage Color
Images
Image
Kalm St. Johnswort leaves
picID
18906
Image
Kalm St. Johnswort flowers
picID
18907
Image
Kalm St. Johnswort form
picID
18908
Size
Exposure (Outdoor)
PlantID
359