Tuesday, May 5, 2009

Difference Between Annuals, Perennials and Biennials

When I just started gardening, I didn't care much about what I planted. A flower was a flower. You sow it, it will grow and bloom someday. But if you want to make your own garden design, knowing when a flower blooms or dies is important. The terms annual, perennial and biennial should be clear in your mind:

Annuals
Annuals are plants that grow from seeds, bloom and seed within a single growing season. The complete plant dies(leaves, stem and roots) after the growing season. A common example of an annual flower is marigold which blooms througout the growing season. In non-tropical climates, annuals should be planted in spring.

Perennials
Perennials are plants that come back for many growing seasons. Part of the plant dies back in winter and grow again from the same roots the following growing season. They may not bloom the first growing season and they bloom for only a couple of weeks each season. These plants need periodic replacement(each 3 -5 years).

Biennials
Biennials are plants that needs two years to grow before dying. They grow vegetatively the first year, go through winter and blooms the following year. These plants die after blooming and seeding.

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