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Hypericum addingtonii

Addington St John's wort

A medium-sized, semi-evergreen shrub to about 2m in height and spread, with arching branches displaying pairs of papery, oval leaves arranged all in one plane. Golden-yellow, bowl-shaped flowers ,up to 5cm across, appear singly or in small clusters near the ends of branches in summer

Other common names
shrubby St John's wort
Synonyms
Hypericum leschenaultii misapplied

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Size
Ultimate height
1.5–2.5 metres
Time to ultimate height
5–10 years
Ultimate spread
1.5–2.5 metres
Growing conditions
Chalk
Clay
Loam
Sand
Moisture
Moist but well–drained, Well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Yellow Green
Autumn Green
Winter Green
Position
  • Full sun
  • Partial shade
Aspect

West–facing or South–facing or North–facing or East–facing

Exposure
Sheltered
Hardiness
H5
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
China

How to grow

Cultivation

Grows well in moist but well-drained soil in sun or partial shade, protected from cold, drying winds

Propagation

Propagate by semi-hardwood cuttings

Suggested planting locations and garden types
  • Cottage and informal garden
  • Low Maintenance
  • Flower borders and beds
  • Banks and slopes
Pruning

Pruning group 8

Pests

Generally pest-free

Diseases

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

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