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Beginner
skill rating |
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0.6m
max. spread |
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1m
max. height |
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2-5 years
to maturity |
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1 hour care
per year |
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This plant
is toxic! |
Botanical name: Hypericum perforatum
Other names: Perforate St John's wort, Penny John, Rosin rose, St Columba's Flower, Klamath weed, Human blood, Devil's flight, Devil's courage, God's wonder plant, Cammock, Common St John's wort, Devil chaser, Herb John
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Genus: Hypericum
Species: H. perforatum - H. perforatum is a spreading shrub with leaves which have translucent dots when held up to the light, giving them a ‘perforated’ appearance and and cheerful yellow flowers in summer and autumn.
Hypericum perforatum is: Deciduous
Flower: Bright-yellow in Summer
Foliage: Mid-green in Spring; Mid-green in Summer; Mid-green in Autumn
Habit: Erect, Small
Toxicity: Ingestion may cause severe discomfort.
Hypericum perforatum (Perforate St John's wort) will reach a height of 1m and a spread of 0.6m after 2-5 years.
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Suggested uses: Banks and Slopes, Beds and borders, Cottage/Informal, Ground Cover, Low Maintenance, Wildflower
Cultivation: Plant in well-drained, or moist but well-drained, soil in sun or partial shade.
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| Soil types: |
Chalky, Clay, Loamy, Sandy (will tolerate most soil types) |
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| Soil drainage: |
Moist but well-drained, Well-drained |
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| Soil pH: |
Acid, Alkaline, Neutral |
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| Light: |
Partial Shade, Full Sun |
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| Aspect: |
North, South, East, West |
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| Exposure: |
Exposed, Sheltered |
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| Hardiness: |
Hardy (H4) |
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Discuss Hypericum perforatum (Perforate St John's wort) with other Shoot members.
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Comment from
Miriam Mesa-Villalba
The leaves have translucent glands which give a perforated appearance. It has been used as a herbal treatment for depression, but causes sensitivity to sunlight and there is debate as to whether medical trials support its efficacy. It is a rich source of nectar and pollen. Several leaf beetles Chrysolina sp and a couple of pot beetles Cryptocephalus sp. are specific to members of the Hypericum family. The stems of members of this family exude a red juice when broken.
- Views: 118
- Replies: 0
- Posted: Tue. 16th June 2009 17:45
We list 17 suppliers who tell us they sell Hypericum perforatum (Perforate St John's wort). In order to see the list you'll need to either register or log in as a full member.
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