Hypericum calycinum
rose of Sharon
A fast-growing, spreading groundcover shrub with evergreen to semi-evergreen long, oval-shaped dark green leaves. Bright yellow, five petalled flowers bloom throughout summer and into autumn. Height is 60cm with a spread of 1.2m or more. The red berries turn black in autumn
Size
Ultimate height
0.5–1 metresTime to ultimate height
2–5 yearsUltimate spread
1–1.5 metresGrowing conditions
Moisture
Moist but well–drained, Well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | |||
|---|---|---|---|---|
| Summer | Yellow | Green | ||
| Autumn | Green | Black Red | ||
| Winter | Yellow | Green |
Position
- Full shade
- Full sun
- Partial shade
Aspect
East–facing or South–facing or North–facing or West–facing
Exposure
Exposed or ShelteredDrought resistance
Yes Hardiness
H5Botanical details
- Family
- Hypericaceae
- Native to GB / Ireland
- No
- Foliage
- Evergreen or Semi evergreen
- Habit
- Suckering
- Potentially harmful
- Fruit are ornamental - not to be eaten. Wear gloves and other protective equipment when handling. Pets: Fruit are ornamental - not to be eaten - see the HTA guide to potentially harmful plants for further information and useful contact numbers
- Genus
Hypericum can be annuals, perennials, shrubs or trees, evergreen or deciduous, with usually paired leaves and showy yellow flowers with prominent stamens, followed by capsules, occasionally berry-like
- Name status
Correct
- Plant range
- S Europe, SW Asia
How to grow
Cultivation
Grows well in moist but well-drained soil in sun or partial shade. Ideal for under trees. May have the potential to become a nuisance if not managed well
Propagation
Propagate by semi-hardwood cuttings
Suggested planting locations and garden types
- Cottage and informal garden
- Wildlife gardens
- Low Maintenance
- Banks and slopes
- Flower borders and beds
- Ground cover
- Wall side borders
Pruning
Pests
Generally pest-free
Diseases
May be susceptible to a rust and honey fungus (rarely)
Get involved
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