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冬观夏花，夏赏冬花，单色花变色，一花开多色，已是现代人的一种向往和追求。下面简要介绍几种方法：１巧使花儿听令开大多数花卉的开花季节都是由光温决定的。根据花卉的这一特性，只要选择已进入生殖生长阶段的植株，人为地进行光温控制，即可使花卉听令开放。比如郁金香是
Winter view of summer flowers, summer tours winter flowers, monochromatic flowers discoloration, a blossoming color, is a longing for modern people and the pursuit. The following is a brief introduction to several ways: 1 clever flowers listen to open most of the flowering season of flowers are determined by the light temperature. According to this characteristic of flowers, as long as the plants that have entered the stage of reproductive growth are selected, artificially light temperature control, you can make the flowers listen to open. For example, tulips are