by Kelly Szymanski

Created on: July 10, 2010   Last Updated: February 26, 2011

Nasturtiums are an easy to grow annual that will bloom in a vivid display of bold, hot colors from early summer until the first frost extinguishes their fire. Their blazing colors range from orange and gold to red and brown. Its foliage is a beautiful contrast of cool deep green.

Nasturtiums grow on vines that can get up to ten feet in height with a spread of up to eighteen inches. They don't need to be grown on a trellis or vine, however. They are just as happy growing in a mound if they have plenty of room to spread. They are grown in all hardiness zones.

Nasturtiums are easy to start from seed. To help seeds sprout faster, soak them overnight before planting. Plant them two to a hole in holes about a half inch deep and at least five inches apart. Cover the holes with soil, lightly patting it down.

Water the seeds well. Fertilize with a low nitrogen liquid fertilizer diluted to half strength. Mulch the area lightly to help keep the soil temperature and moisture level consistent. Thin the seedlings to the strongest few as they begin to grow. You should continue weekly fertilization through out the blooming season.

If you prefer not to start your Nasturtiums from seed, buy seedlings that have vivid leaf color and a few flower buds but have not bloomed. Don't buy any that look too tall for their container, or have minimal or pale leaves.

Nasturtiums prefer full sun, but in particularly hot areas need some light shade to keep them blooming all season. They are drought tolerant and will survive if left unattended, but prefer well drained soil without too much nitrogen.

Remove any spent flowers and faded foliage to encourage continuing blooming and to keep your plant looking bold and brilliant. Don't pinch back the vines, though. Pinching can cause stunted growth.

Unfortunately, aphids like Nasturtiums. If you notice any little white, green, black or brown bugs on your Nasturtiums, carefully rinse them off with water.

Both the leaves and flowers of Nasturtiums are edible. Use the flowers to add a fiery splash of color to your dinner plate. Chop up the leaves to add a dash of peppery heat to salads or sandwiches.

In the fall as frost threatens, lift the entire plant from the ground. If you don't want to eat it, chop it up and add them to your compost pile.

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