Ricinus communis
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Ricinus communis

castor bean
castor-oil plant

  family euphorbiaceae 
  genus ricinus 

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Genus  Ricinus Species  communis Variety  Cultivar  Common names  castor bean   castor-oil plant Family  EUPHORBIACEAE Specimen number  S13751 Data source  Allergy p282;HtZn p163;MedPl p260;Xeri p280
Life cycle
Life form  Terrestrial Life cycle  Annual Life span  1 year Annual cycle  Not applicable Stature  Shrub Growth form  Not applicable Growth habit  Various Overall height  4' - 15' Overall spread   
Sunshine  Various Water  Moist Optimal soil texture  Various Acceptable soil pH  Neutral USDA hardiness  Above 40� F AHS heat zones  Heat zones 12-01 Sunset climate zones  Not classified
Suitable for gardens  yes Nursery  Unknown Compost  no Size at acquisition  Unknown Garden location  Unknown Garden notes  This very tender plant can only survive nighttime temperatures of 40� Fahrenheit. Ricinus communis needs summer days with high heat. It needs soil that is moist.
Special qualities
Tolerates drought  no Tolerates high humidity  no Tolerates seaside conditions  no Insect resistant  no Disease resistant  no Deer resistant  no Best uses    Symbiosis  Attracts butterflies  no Attracts hummingbirds  no Autumn foliage  no Colorful berries  no Desirable qualities    Other interest    Other interest color  Other interest period   
Adverse factors
Common pests  Poisonous parts  Seeds Poisonous indications  Internal poison  no Dermatologic poison  no Livestock poison  no Mechanical injury  no Hay fever pollen  Strong Hay fever season  Jan 01 - Dec 31 Adverse qualities   
Herbal medicine
Medicinal properties  laxative   purgative Medicinal parts  Seeds   Seed oil Has medicinal uses  yes Do not self-administer  no Do no use if pregnant  yes Legally restricted  no Toxicity precautions  Its seeds are fatally poisonous. Medicinal notes  Ricinus communis is thought to have beneficial uses as either a laxative or a purgative. Castor bean (sometimes called castor-oil plant) is not to be taken by pregnant women. The seeds and the seed oil are used in herbal preparations. Its seeds are fatally poisonous. The seeds of this plant are toxic. A well-known pollen producer, this plant is to be avoided on dry, windy days. This plant doesn't really have a "season" for hay fever pollen; it tends to produce wind borne pollen almost year-round.
Traditional uses
Parts used  Traditional uses  Contemporary uses  Fragrance  Fragrance parts  Fragrance intensity    Fragrance category    Dye parts  Dye color 
Propagule  Various Pollination method    Planting style    Crop spacing    Row spacing    Cold frame  Planting period    Harvesting period    Frost tolerance    Heat requirement  Warm Fertilizer  Typical Time to harvest 
Is edible  no Culinary uses  Nutritional value  Edible parts  Description of edible parts Flavor / texture 
Horticulture notes  It requires warm days for good production. Ricinus communis is a cultivated ornamental.
Tag needs printing  no Collection notes  Ricinus communis has an annual life cycle. Leaves: Castor bean (locally known in some parts as castor-oil plant) has coarse-textured leaves with red mid-vein that emerge red and turn glossy green. Flowers: This plant has inconspicuous flowers. The blossoms are typically of a red color.

Page 4097 of 4998

Last reviewed November 01, 2004   


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