Annuals — In one season, a seed (A) sprouts. The seedling (B) grows to maturity and flowers (C). After it flowers, the seeds ripen (D) and the plant dies. Seeds drop to the ground and the process starts over again when soil conditions are right.
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Perennials — Just like annuals, perennials can spread by seed (A, B and C). But roots or runners from the parent plant can also sprout (D). They go dormant in winter (E). The following spring they grow (F), reach maturity, send out more runners and spread more seed.
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