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Conservatory Greenhouse

Primula × kewensis (Sp)

Kew primrose

An evergreen perennial to 45cm tall, with a rosette of broadly spoon-shaped leaves and erect stems bearing several whorls of fragrant, bright yellow flowers 2cm across in early spring

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Size
Ultimate height
0.1–0.5 metres
Time to ultimate height
1–2 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Loam
Sand
Moisture
Moist but well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Yellow
Summer
Autumn
Winter
Position
  • Partial shade
Aspect

North–facing or West–facing or East–facing

Exposure
Sheltered
Hardiness
H3
Botanical details
Family
Primulaceae
Native to GB / Ireland
No
Foliage
Evergreen
Habit
Bushy
Genus

Primula are herbaceous or semi-evergreen perennials, forming a basal rosette of simple leaves, with salver-shaped or bell-shaped flowers which may be solitary or carried in an umbel or in whorls on an erect stem

Name status

Correct

Horticultural Group
Floribundae section primulas are perennials forming a rosette of evergreen leaves, with salver-shaped flowers brone in several whorls on the stem

How to grow

Cultivation

Grow in a cool or temperate greenhouse or as a houseplant. Plant in a well-drained, peat-free, loam-based compost with the addition of extra grit and provide bright, filtered light.

Propagation

Divide between autumn and early spring. Take root cuttings when dormant in the winter. Root basal cuttings or offshoots in autumn or early spring

Suggested planting locations and garden types
  • Patio and container plants
Pruning

cut back old flowering stems as they finish.

Pests

May be susceptible to aphids, glasshouse red spider mite, leaf hoppers, vine weevil and slugs

Diseases

Susceptible to primula brown core, powdery mildew and a virus

Get involved

The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.