Hypericum revolutum

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Shrubs

A half-hardy semi-evergreen shrub to 3m tall, with reddish-brown shoots and opposite pairs of elliptical leaves; the foliage has an aroma of curry when crushed. From summer to autumn it may produce cup-shaped yellow flowers with prominent tufts of stamens, however it is shy to flower in British gardens. Suitable only for a very sheltered position outdoors or cool greenhouse

Position

Full sun

Soil Types

Chalk, Loam, Sand

Max Height

2.5-4 metres

Max Spread

1.5-2.5 metres

Size

Time to Maturity
10–20 years
Max Spread
1.5-2.5 metres
Max Height
2.5-4 metres

Growing Conditions

Chalk Loam Sand
Moisture
Well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun
Aspect
South–facing or West–facing
Exposure
Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

  • H1A: under glass all year (>15C)
  • H1B: can be grown outside in the summer (10 - 15)
  • H1C: can be grown outside in the summer (5 - 10)
  • H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
  • H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
  • H4: hardy through most of the UK (-10 to -5)
  • H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
  • H6: hardy in all of UK and northern Europe (-20 to -15)
  • H7: hardy in the severest European continental climates (< -20)
H3

Colour & Scent

Fragrance Foliage
Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Hypericaceae
Native to GB/Ireland
No
Foliage
Semi evergreen
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
SW Asia, Africa

How to Grow

Cultivation

Under glass grow in peat-free, loam-based potting compost with added extra grit. Position in full light and water freely in the growing season, moderately at other times. Outdoors grow in freely-draining soil in full sun, or against a south-facing wall

Propagation

Propagate by seed or semi-ripe cuttings

Suggested planting locations and garden types

  • City and courtyard gardens
  • Climber and wall shrubs
  • Conservatory and greenhouse

Pruning

See pruning group 1

Pests

Generally pest-free

Diseases

May be susceptible to a rust and honey fungus (rarely)