St. John's Wort 'Kalm's'

Common Name: Kalm's St. John's Wort

Scientific Name: Hypericum kalmianum

Zone: 4-7

Blossom Colour: Bright yellow

Flowering Type: Summer blooms (mid to late summer)

Summer Colour: Green

Fall Colour: Green to yellowish

Mature Height (ft): 2-3

Mature Spread (ft): 2-3

Exposure: Full sun to partial shade

Tree Type: Deciduous shrub

Watering: Moderate; tolerates drought but performs best with consistent moisture in well-drained soil

Fertilization: Apply a balanced fertilizer in early spring to encourage robust growth and flowering.