Castor Beans Plant – Grow, Plant Care, Nomenclature

The term”castor tree” typically refers to the castor oil plant scientifically known as Ricinus communis is a fascinating and versatile plant that has been cultivated and utilized by humans for centuries. Native to Africa it has spread to various regions around the world and is now grown in many tropical and subtropical areas. The castor oil plant is renowned for its multiple uses, including the production of castor oil which has found applications in various industries from medicine to manufacturing. Here’s an introduction to the castor oil plant:

Botanical Description

The castor oil plant is a large, fast-growing perennial shrub that can reach heights of up to 10 meters (33 feet). It has a robust, upright stem with large, palmate leaves that typically have 7-9 lobes. The plant produces clusters of greenish-yellow or red flowers with prominent spiky seed capsules that contain the valuable castor seeds.

Caster Oil Plant Flowers
Caster Oil Plant Flowers
Caster Plant Seeds
Caster Plant Seeds
Green Castor Bean Plant
Green Castor Bean Plant

Castor Oil Plant Production

Castor oil, extracted from the seeds of the castor oil plant has been used for centuries for its various industrial and medicinal properties. The seeds contain a unique oil known as castor oil which is a pale-yellow, thick and viscous liquid. Castor oil has diverse applications, including as a lubricant in the production of cosmetics and as a natural remedy for various health issues.

Castor Tree Historical and Cultural Significance

The castor oil plant has a rich history, with its use dating back to ancient civilizations. It was valued by the Egyptians, Greeks, and Romans for its medicinal properties. In India, it has been used in traditional Ayurvedic medicine for centuries. In some cultures, the plant’s seeds have even been used in divination rituals.

Toxicity Warning

It’s important to note that the castor oil plant is known to be highly toxic. The seeds contain a compound called ricin, which is one of the most potent naturally occurring toxins known to humans. Ingesting even a small quantity of ricin can be lethal. Therefore, the seeds should never be consumed in their raw form, and caution should be exercised when handling the plant.

Modern Uses

In modern times, castor oil continues to find applications in various industries. It is used in the manufacture of soaps, cosmetics, paints, and varnishes. Additionally, it is employed as a bio-fuel in some regions due to its renewable nature.

Nomenclature

Botanical Name Ricinus communis
Family Euphorbiaceae
Genus Ricinus
Species communis
Types Ricinus communis var. gibsonii, Ricinus communis var. zanzibariensis, Ricinus communis 'Carmencita', Ricinus communis 'Impala', Ricinus communis 'New Zealand Purple', Ricinus communis 'Carmencita Pink', Ricinus communis 'Sangui

Planting Guide

Flowers

Castor Flower Color: Gold/Yellow, Green
Castor Flower Inflorescence: Panicle, Spike
Castor Flower Value To Gardener: Showy
Castor Flower Bloom Time: Fall, Summer
Castor Flower Shape: Cup

Fruits

Fruit Color: Brown/Copper, Green, Purple/Lavender, Red/Burgundy
Fruit Value To Gardener: Showy
Fruit Type: Capsule
Fruit Length: 1 inch
Fruit Width: 1 inch
Fruit : The fruits are small, round, red, green, or purple capsules that are covered with dense spines. The capsule turns brown as it matures. They measure 0.5 to 1-inch in diameter and contain three castor bean seeds. The castor bean seeds are smooth, shiny, and mottled black, gray, brown, yellow-brown, and maroon and white. The castor bean seeds resemble a dog tick.

Leaves

Woody Plant Leaf Characteristics: Broadleaf Evergreen
Leaf Color: Green,Purple/Lavender
Leaf Feel: Glossy
Leaf Type: Compound (Pinnately , Bipinnately, Palmately), Simple
Leaf Arrangement: Alternate
Leaf Shape: Palmatifid, Peltate
Leaf Margin: Serrate
Hairs Present: No

Collect Seeds
Harvest  
Soil Texture Loam (Silt) , Sand
Soil Drainage Good Drainage, Moist, Occasionally Dry
Soil Chemistry

pH of 6–7.3

Cultivation

Germination 1-3 weeks
Bloom

Temperature (Climate)
Temperature 20 to 27 ÌŠC
Light Full sun
Health Benefits

  • To increase immunity
  • To get rid of moles and cysts
  • For constipation
  • To treat joint pains
  • Makes your hair stronger and thicker
  • Heals dry, irritated, sun-burnt or acne-prone skin
  • Laxative effect for occasional relief of constipation.
  • Topical use for skin conditions, including dryness and irritation.
  • Application to joints and muscles for pain relief.
  • Believed to promote hair growth and improve hair texture.
  • Antibacterial and antifungal properties for skin infections.
  • Aid in wound healing when applied topically.
  • Potential relief of menstrual cramps.
  • Traditionally used to induce labor, but with caution and medical supervision.