The genus Jatropha includes a wide variety of plants including trees, shrubs and ornamental plants. Some of the most popular are peregrina (Jatropha integerrima), coral plant (Jatropha multifida) and physic nut tree (Jatropha curcas). In general, no matter what variety, Jastropha is a tropical plant that's susceptible to frost damage. Therefore, Jatropha is usually only available and grown in a few places in the United States, such as southern Florida. While Jatropha responds best if planted as a small seedling or established plant, you can also plant it from seed.
Determine if your climate is suitable for growing the Jatropha that you want to plant. Look at a USDA hardiness zones on the USDA website or in a gardening book to find out your planting zone. You can also search by using your zip code on the National Gardening Association website.
Locate a seed or nursery dealer that sells Jastropha seeds. A few local nurseries in warm tropical climates may sell these seeds, but most likely you're going to have to purchase them online from seed dealers, typically located in the Florida area or from abroad, such as India or Australia. Companies that sell Jatropha seeds include Tropilab Inc., B & T World Seeds, and Jatropha World.
Calculate how many seeds you need to buy, which can vary from cultivar to cultivar. Look at the mature width of the plant and decide whether you have enough space in your landscape to grow it. However, purchase about four to five times what you think you will need because not all seeds will germinate and grow well. You can thin out the plants as they grow and choose the healthiest plants.