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4.State the differences between biennial and perennial plants. |
Answer» <p>Biennials.Biennialplants complete their life cycle over two growing seasons. The first season they grow only foliage, commonly a low-growing rosette of leaves. The second growing season they form flowers and produce seeds; then, the mother plant dies. Common biennial flowers include foxgloves and Canterbury bells. But did you know that cabbage, kale, Brussels sprouts, carrots, and celery are also biennials? We usually harvest them in their first season of vegetative growth, so we never actually see the flowers.</p><p>Perennials. Horticulturists don’t often talk about aperennialplant’s life cycle. Rather, you may hear about a particular perennial’s lifespan. For example, you might hear that columbines are relatively short-lived, so you should plan to replant every few years. Perennial plants continue to grow and flower for more than two years—and many will live for decades. However, if we wanted to talk about a perennial’s lifecycle, we would need to look at how long it takes a particular plant to cycle from seed to seed.</p> | |