Hypericum olympicum
Dwarf St John's wort, Olympic St John's wort
- Height × spread
- 0.15m × 0.5m
- Position
- Full sun
- Hardiness
- Average winter to - 10C (RHS H4)
- Flowers
- Spring, Summer
Availability
Please ask in store about availability
Many plants are seasonal. Call 01234 567890 to check current stock.
About this plant
This dwarf shrub makes a pleasing dome of grey-green foliage. For a period in summer there are saucer-shaped golden flowers. These flowers are very pleasing the golden-yellow petals surrounding a very large centre massed with stamens. It is best pruned back after flowering to prevent straggling and encourage another flowering flush.
- Flower colour
- Yellow
- Foliage colour
- Green, Grey
- Variegated
- No
- Scent
- No
- Shape
- Dome
- Height
- 0.15m
- Spread
- 0.5m
- Season of interest
- Spring, Summer
- Flowers in
- Spring, Summer
- Evergreen
- Deciduous
- Garden style
- Seaside garden, Rock garden, Gravel garden
- Sun or shade
- Likes full sun, tolerates part shade
- Soil type
- Chalk, Loam (normal), Sandy soil
- Soil pH
- All types
- Drainage
- Well drained soil, Dry soil, Drought resistant
- Hardiness
- Average winter to - 10C (RHS H4)
- Borders & containers
- Borders and containers
- Use for
- Structural, Deer resistant, Rabbit resistant, Bee attraction
- Maintenance
- Easycare – low/no maintenance
- Hazards
- No
- Pet safe
- Yes – listed in our pet-safe plants
Spring
Spring - late · Outdoors
Feed with slow release fertiliser
Apply a general purpose slow release fertiliser, spreading it around the root area of the plant as it is coming into growth. (Or apply a liquid feed at regular intervals throughout the growing season.)
This is a simple way to provide a nutrient boost as a single annual procedure.
Spring-Autumn · Outdoors
Water in dry periods
Established plants in the ground can cope with 7-10 days of dryness, and shrubs often manage 2 to 3 weeks. Water one section of the garden thoroughly each day rather than a little everywhere. Check plants in pots more often, especially in hot weather.
Planting & general
Outdoor planting · Planting
Add root growth stimulant to the planting hole
Mycorrhizal fungi helps roots establish quickly, so they absorb water and nutrients more efficiently. It comes as a powder, granule or gel. Add to the planting hole or container, and to the plant's rootball before planting in the hole. For "bareroot" plants use a gel.
Found in
More Hypericum
Hypericum
St John's wort, St Peter's wort
Hypericum Magical Beauty = 'Kolmbeau'
St John's wort
Hypericum Magical Red = 'Kolmred'
St John's wort
Hypericum Miracle Attraction = 'Alldiablo'
St John's wort
Hypericum Miracle Blizz = 'Allblizz'
St John's wort
Hypericum x hidcoteense 'Hidcote'
St John's wort, St Peter's wort
Hypericum x moserianum 'Tricolor'
Moser's St John's wort, Gold flower
Hypericum 'Berry Orange'
St John's wort, St Peter's wort