Annuals
Caster Oil Plant (Ricinus communis)

Caster Oil Plant (Ricinus communis)

Caster Oil Plants look fabulous, but they are fabulously poisonous. You have been warned: all parts are poisonous. Being a member of the spurge family it typically protects itself with poisons. It looks good in a border where its large flowers and abundant fruits can be a centre of attraction.
Price: Grow it from seed - a packet costs about £2.

The Knowledge

  • Plant Type: Annual
  • Height: 71.12cm (28in)
  • Spread: 66.2cm (26in)
  • Situation: Sunny Border
  • Soil Type: Medium to Rich
This makes an excellent subject for a hot border. It is fast growing and has large palmate leaves. The flowers are yellow-green and are produced in the summer, followed by round red fruits as shown in the photograph. The plant is tall and carries itself well in an herbaceous border.

There are a number of different varieties to grow including 'Carmencita' AGM, 'Red Spire' and 'Zanzibarensis', all of which have exciting characteristics. The plant can also be grown in a pot as it is a very distinctive plant, or in a conservatory.

Looking Good:
Check out the London Parks and Gardens (and other urban parks) to see the widespread use of Caster Oil Plant as an important foliage plant during July and August.

Best With:
Plant with yellow ligularia.
 
 

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