Gardening Articles :: Flowers :: Annuals :: National Gardening Association

Gardening Articles: Flowers :: Annuals

Add Color with Annual Flowers

by Susan Littlefield

Would you like to have your garden bursting with color all season long? Do you want lots of floral "pizzazz" for the least amount of effort? Then our easy-to-grow annual flowers are just what you're looking for! Versatile annuals are a great way to keep the garden in bloom in a cheerful array of bright hues from from spring until frost. And because you're growing them from seed, annuals are economical as well.

Versatile and Easy

Just what are annuals? These are plants that complete their life cycle in one growing season -- from seed to flower and back to seed again. To do this, annuals grow quickly and bloom young. As long as you don't let them set seeds, which signals to plants that they have completed their life cycle, most will keep up a steady parade of blossoms until fall frosts shut them down.

Unlike biennials and perennials, which live for two and at least three seasons, respectively, annual flowers do need to be replanted each year. But this lets you try out new flowers and experiment with new combinations of colors and textures each season. And as long as they receive the proper growing conditions, most annuals flowers are trouble-free, with few insect and disease problems.

So spice up your garden with some of our flowering annuals this season and enjoy a rainbow of color all summer long.

'Carpet of Snow' Alyssum -- A low-growing carpet of fine textured foliage is covered with masses of small, white, fragrant flowers. Direct seed in the garden in early spring.

'Sensation Mix' Cosmos -- Sow the seeds of this easy to grow annual directly in the garden in a sunny spot for an abundance of flowers in shades of pink from summer to fall.

Four O' Clock Mix -- Red, pink, yellow, and white trumpet shaped flowers open in late afternoon; earlier on cloudy days. Bushy plants get 2 feet tall.

Large Flowered Sunflower Mix -- The cheerful, 6-inch wide, yellow, red and bronze blossoms are borne on plants reaching 6-10 feet tall. Great for hedges, screens, and cutting.

Get Growing Outdoors

What could more natural than poking seeds in prepared ground, thinning the seedlings after they sprout, then enjoying a bounty of blossoms? In a nutshell, that's all you need to do with annuals that can be sown directly in the garden. These easy choices are plants that grow quickly enough to not need an early start indoors. Alyssum, zinnias, sunflowers, cosmos, morning glories, and nasturtiums are among the annuals that are well suited to direct seeding.

Start by preparing the seedbed by working in a 2-inch layer of compost and a handful of complete fertilizer, then raking the bed smooth. Place individual seeds at the depth recommended on the seed packet or scatter seeds over the bed and rake lightly to cover the seeds to the correct depth. Then firm the soil gently and water. Keep the seedbed moist but not soggy. When seedlings emerge and are a few inches tall, thin to the spacing suggested on the seed packet by snipping out surplus plants at the soil line with a small pair of scissors. This works better than pulling out the extra seedlings, which can disrupt the roots of the seedlings left standing.

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