Hypericum acmosepalum
St John's wort, St Peter's wort
- Height × spread
- 1.5m × 1.5m
- Position
- Full sun
- Hardiness
- Cold to -15C (RHS H5)
- Flowers
- Summer
Availability
Please ask in store about availability
Many plants are seasonal. Call 01234 567890 to check current stock.
About this plant
This is a pretty plant with its arching spreading branches that are clad in good sized leaves, somewhat slender, coloured a good rich green in summer and generally taking on red tints in autumn. The leaves are held on reddish shoots. The flowers are golden yellow, and come from good plump buds. At the heart of each bloom are thickly clustered stamens, and the flower petals curve outwards, informal, luxuriant in effect. Sometimes the colour fades towards the petal tips, adding to the interest when seen at a distance. There are red fruit capsules after the flowers have faded. This stands up to 1.5 metres in height with a similar spread.
- Flower colour
- Yellow
- Foliage colour
- Green
- Fruit colour
- Red
- Variegated
- No
- Scent
- No
- Shape
- Dome
- Height
- 1.5m
- Spread
- 1.5m
- Season of interest
- Summer, Autumn
- Flowers in
- Summer
- Evergreen
- Evergreen
- Sun or shade
- Likes full sun, tolerates part shade
- Soil type
- Chalk, Clay, Loam (normal)
- Soil pH
- All types
- Drainage
- Moisture retentive soil, Well drained soil
- Hardiness
- Cold to -15C (RHS H5)
- Borders & containers
- Borders
- Use for
- Structural, Deer resistant, Rabbit resistant
- Hazards
- No
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 to keep the soil moist
For best results, this plant needs soil that is always moist. Water deeply and regularly as soon as soil appears dry. Even for established plants in the ground, a dry week can cause problems with some soils. Check plants in pots more often, especially in hot weather. Or install an automatic irrigation system which will do the hard work for you, even when you are away on holiday.
Without regular watering some plants never fully regain their beauty.
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
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St John's wort, St Peter's wort
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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