Landscaping, Hardscaping, Gardening & Curb Appeal Tips

Landscaping 101: Learn the Different Plant Groups

Whether you can't tell an annual from a perennial or a sedge from a succulent, green up your thumb by learning the basics of the various plant groups.

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Biennials

Much less common than annuals and perennials, biennials live for two years, producing foliage the first year and flowers the next. Flowering biennials include hollyhocks, foxglove, dianthus and Canterbury bells. Most biennials are actually vegetables — beets, Brussels sprouts, cabbage, carrots, cauliflower, celery, chard, collards, endive, kale, kohlrabi, leeks, onions, parsley, parsnip and rutabaga — that produce food the first year but don't complete their growing cycle and drop seed till the second. Find the best biennials for your zone in our plant finder.

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