Perforate St John’s wort (Hypericum perforatum) is a perennial plant that can grow 50cm – 1.5m tall and 10cm – 50cm wide.
This plant has several common names including: perforate St John’s wort, cammock, common St John’s wort, devil chaser, devil’s flight, devil’s scourge, God’s wonder plant, herb John, human blood, Klamath weed, penny John, rosin rose or St Columba’s flower.
This is a deciduous plant that takes 2-5 years to reach full maturity.
Plant profile
Common name: perforate St John’s wort, cammock, common St John’s wort, devil chaser, devil’s flight, devil’s scourge, God’s wonder plant, herb John, human blood, Klamath weed, penny John, rosin rose, St Columba’s flower
Scientific name: Hypericum perforatum
Plant type: Perennials
Habit: Bushy
Height: 50cm – 1.5m
Spread: 10cm – 50cm
Foliage: Deciduous
Sunlight: Full Sun, Partial shade
Soil: Chalk, Clay, Loam, Sand
Moisture: Moist but well drained, Well drained
Garden type: Wildflower meadow, Wildlife Gardens
Planting type: Low Maintenance
Seasonal colors
| Season | Stem | Foliage | Flower | Fruit |
|---|---|---|---|---|
| Spring | ||||
| Summer | ||||
| Autumn | ||||
| Winter |
How to plant Perforate St John’s wort (Hypericum perforatum) – Zeynel Cebeci, CC BY-SA 4.0, via Wikimedia Commons
Cultivation profiles – Growing Perforate St John’s wort (Hypericum perforatum) – Cbaile19, CC0, via Wikimedia Commons
