Hypericum kalmianum (Kalm's St. Johnswort)
Calculate how many plants you need for your next project.

Hypericum kalmianum (NGN)

Kalm's St. Johnswort

Low shrub with bright yellow flowers in small clusters at ends of 4-sided branches; bark papery, peeling when older.
Height: 24-36 in
Width: 24-36 in
Soil Conditions: Moist/Well Drained
Flower Color: Yellow
Bloom Time: July
Hardiness Zone: 4 TO 7
ITEM # CROP IMAGE SIZE CURRENT AVAIL
22599.1G #1 0
Add to My Design Palette

Characteristics & Attributes

Attracts Wildlife
Attracts Pollinators
Plant Habit
Rounded
Light Conditions
Sun to Part Shade
Native Plant Community
Mesic Prairie
Flower Color
Yellow
Flower Hue
Medium
Flower Height
24" to 36"
Flower Type
CYME
Foliage Color
Green
Leaf Texture
Fine
Prune Time
Jan/Feb/March
Flower Form
Single
Flower Size
1"
Growth Rate
Slow

Possible Substitution Plants

Lysimachia quadriflora
Zizia aurea
Zizia aptera