What Controls Flowering
Paragraph 1: The timing of flowering and seed production is precisely tuned to a plant’s physiology and the rigors of its environment. In temperate climate plants lost flower early enough so that their seeds can mature before the deadly winds of autumn. Depending on how quickly the seed and fruit develop, flowering may occur in spring as it does in oaks; in summer as in lettuces; or even in autumn as in asters.
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