Hypericum olympicum
Mount Olympus St John's wort
A dwarf, deciduous sub-shrub to 25cm in height, with erect stems crowded with small ovate, grey-green leaves. Flowers to 5cm in width, bright yellow, in small clusters
Size
Ultimate height
0.1–0.5 metresTime to ultimate height
5–10 yearsUltimate spread
0.1–0.5 metresGrowing conditions
Moisture
Moist but well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green Grey Silver | |||
|---|---|---|---|---|
| Summer | Yellow | Green Grey Silver | ||
| Autumn | Green Grey Silver | |||
| Winter |
Position
- Full sun
- Partial shade
Aspect
South–facing or West–facing or East–facing or North–facing
Exposure
Exposed or Sheltered Hardiness
H4Botanical details
- Family
- Hypericaceae
- Native to GB / Ireland
- No
- Foliage
- Deciduous
- Habit
- Bushy
- 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
- Balkans to Turkey
How to grow
Cultivation
Grows well in moist but well-drained soil in sun or partial shade
Propagation
Propagate by seed and semi-hardwood cuttings
Suggested planting locations and garden types
- Patio and container plants
- Rock garden
- Cottage and informal garden
- Gravel garden
- Garden edging
Pruning
Pests
Generally pest-free
Diseases
May be susceptible to a rust and honey fungus (rarely)
Get involved
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