Hypericum Species, Bushy St. John's Wort, St. Johnswort
Hypericumdensiflorum

Family: Hypericaceae (hy-PER-ee-KAY-see-ee)
Genus: Hypericum (hy-PER-ee-kum)
Species: densiflorum (den-see-FLOR-um)

Synonym:Brathys prolifica

Synonym:Hypericum galioides

Synonym:Hypericum glomeratum

Synonym:Hypericum kalmianum

Synonym:Hypericum prolificum var. densiflorum

Category
Perennials
Shrubs

Water Requirements
Drought-tolerant; suitable for xeriscaping

Sun Exposure
Full Sun
Sun to Partial Shade

Foliage
Deciduous
Smooth

Foliage Color

Height
36-48 in. (90-120 cm)

Spacing
36-48 in. (90-120 cm)

Hardiness
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)

Where to Grow

Danger
Handling plant may cause skin irritation or allergic reaction

Bloom Color
Bright Yellow

Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds

Bloom Size

Bloom Time
Late Spring/Early Summer
Mid Summer

Other details

Soil pH requirements

Patent Information

Propagation Methods
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; stratify if sowing indoors

Seed Collecting
Allow pods to dry on plant; break open to collect seeds