Growing flowers isn't a necessity, but they add beauty to the outdoor landscape. As cut flowers, they beautify the interior of our homes. Hundreds of varieties of flowers exist--both annual and perennial--that are easy to grow. Together they can provide season-long bloom and color with a little help from the gardener.
Most spring-blooming flowers are perennials, and many of them are extremely fragrant. The most reliable are spring bulbs such as tulips, daffodils and crocus, most of which bloom year after year with no additional help from the gardener. Other spring-blooming perennials include lily of the valley, lilacs, peonies, azaleas, pinks and vinca.
A few annuals prefer to bloom in the cooler weather of spring. Some of these are pansies, violas, snapdragons, annual pinks and lupins. If you cut them back when hot weather arrives, provide them some shade from hot summer sun and keep them well-watered; they will begin to bloom again in early fall when the weather cools.
The best summer-blooming perennials are roses, iris, daisies, poppies and lilies. Many varieties of roses are ever-blooming and will continue to produce flowers until cold autumn weather arrives.
Hot weather annuals are the backbone of the summer flower garden. Plant impatiens, marigolds, sunflowers, zinnias, geraniums and morning glories. As long as you remove the faded blossoms, all of these annuals will continue to produce flowers until they are killed by frost.