To provide a technique whereby, in cultivating a crop, factors relating to differentiation into flower buds and leaf buds, sprouting, flowering, and fruiting, growth of young shoots, etc., are regulated. For example, the invention addresses the problem of regulating the growth of a crop so that the leaf buds sprout in tandem and with the sprouting of flower buds and flowering and fruiting are repeated under fresh foliage. [Solution] A plant cultivation method which comprises environmentally stimulating a plant to regulate differentiation into flower buds and/or differentiation into leaf buds. In a typical embodiment, the plant is help in an environment at a temperature of 16-40° C. at a photoperiod of 8-12 hours immediately after harvesting fruits. As another environmental stimulus, the plant is held in, for example, an environment at a temperature of 3-7° C. As still another environmental stimulus, the plant is held in, for example, an environment at a temperature of 16-23° C. at a photoperiod of 8-11 hours.
