Gardenia thunbergia / White Gardenia / Seeds

(Code: KB_048)
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Gardenia thunbergia / White Gardenia / Seeds

A heavily perfumed Gardenia from the Cape Floral Kingdom in South Africa, first introduced here in the UK by Kew in 1773. White Gardenia is a small flowering evergreen shrub or small tree.  It grows 2m-5m in height and has very showy large white perfumed flowers (at night) in mid to late summer.  The flowers turn into attractive woody fruits. 

White Gardenia is easy to grow and look after, but takes some time to reach a mature height and produce a full display of flowers. It makes a good bonsai subject. Best to grow in sun or part shade, and protect from all but the lightest frost it will grow well in a big pot which can be moved into a conservatory, greenhouse or protected area over winter.


Pack of 10 seeds.  Sow spring to summer.   Sowing instructions and a colour photo are printed on the packet.


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Hardiness Half hardy evergreen shrub / small tree
Flowers Mid to late summer
Height 2 - 5m
Spread 2 -4m
Conditions  Sun to part shade in neutral to slightly acidic humus-rich soil

Sow in spring to summer in moist seed compost,with a light covering of compost.   Keep at 20-25 C and germination takes 4-6 weeks, sometimes longer.  Protect seedlings over the winter in a greenhouse or cold frame, before planting out in the spring.  Protect plants from frost.

Grow Keep well watered all year.  Protect from frosts greater than -1C.  Plants do not generally need pruning, but can be trimmed after flowering to keep in shape or restricted for pot growth.