Answer: In cold northern areas, it's best grown as an annual, or you can pot up plants to bring inside for use during the winter. In nature it grows on moist, sandy streambanks and marshes, so in the garden, provide a well-drained humusy-loam soil that is slightly acidic (6.0-6.5, which is good for most garden vegetables). Transplants are slow to get going, but will take off in midsummer. Harvest leaves before the plants flower, and dry them for storage. A few days of strong sun should be enough to dry them well. You can try experimenting with propagation with cuttings taken in summer. Dip 3" tip cuttings in rooting hormone and plant in a tray of moist - not soaking wet - sand, and mist frequently. Or try rooting them in a vase of water. Indoor plants require supplemental light and a warm room (70F) during the winter.
You can purchase the plant Stevia rebaudiana from the Richters Herbs web site at http://www.richters.com
Q&A Library Searching Tips