Plant Care Ricinus Communis

Ricinus Communis

About Ricinus Communis

Castor Bean is a cultivated, annual herbaceous ornamental with low drought tolerance. If broken seeds are ingested, it is likely to cause death in humans, livestock, and pets.


Ricinus communis

Also known as

Castor Bean, Castor Bean, Castor oil plant, Ricinus and Ricininae

How to care for Ricinus Communis


How often to water your Ricinus Communis

Water needs for Ricinus Communis
0.5 cups
every 9

Ricinus Communis needs 0.5 cups of water every 9 when it doesn’t get direct sunlight and is potted in a 5" pot.

Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.

Calculate water needs of Ricinus Communis

Water 0.5 cups every

Does your plant get direct sunlight?

Select the pot size


Check the growing potential in your area

A plant's growing potential is determined from its location, the time of year, and current local weather.

Select a city to check sunlight intensity

Finding light for Castor Bean in your home

Light needs and placement for plant Ricinus Communis: 1ft from a window
1ft or less from
a window

Ricinus Communis love being close to bright, sunny windows 😎.

Place it less than 1ft from a south-facing window to maximize the potential for growth.

Ricinus Communis does not tolerate low-light 🚫.

Select your region to see how the current weather in your area affects the placement of Ricinus Communis in your home 🏡.


How to fertilize Ricinus Communis

Nutrient, fertilizer, and repotting needs for Ricinus Communis: repot after 2X growth

Most potting soils come with ample nutrients which plants use to produce new growth.

By the time your plant has depleted the nutrients in its soil it’s likely grown enough to need a larger pot anyway.

To replenish this plant's nutrients, repot your Ricinus Communis after it doubles in size or once a year—whichever comes first.

Difficulty Level

Ricinus Communis is generally considered an easy-to-care-for plant and makes a great choice for beginners!

Water Needs
Sunlight Needs
Growing Outdoors

Care Summary for Ricinus Communis

Ricinus Communis

Ricinus Communis

Greg recommends:


0.5 cups every 9 days


< 1ft from a window


Repot after 2x growth

Based on the 4” pot your plant is in, and that it doesn’t get direct sunlight.

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