Castor oil plant you must have seen in someone backyard but just did not know that that beautiful plant is castor oil plant! Origin of this plant is Africa but in time castor oil plant was spread to Asia, Europe and America. Plant can live one or two years depending of climate. Plant has fully developed body. In tropical areas it can grow in really big plant up to 30 feet high! In normal climate it can grow up to 6 feet high. Most people grow castor oil plant as just decorative yard plant! In some local area this plant goes under different name! All though this plant is very nice it is one of most poisoness plant in the world. You should not in any case consume any part of castor oil plant! Cold pressed castor seeds oil is not poisoness and it can be used for human conssumation.