Nasturtiums are early bloomers that will be happy in your garden or flower bed even in poor soil. The cheerful blooms, available in shades from soft yellow to bright red, will climb up a fence or wall, cascade from a hanging basket, or line the border of a flower bed. Nasturtiums are an old favorite for experienced gardeners, and a great way to introduce gardening to children. Hummingbirds and butterflies will love the the sweet blooms.
Wait until the weather warms up and freezing weather is over, and purchase a package of nasturtium seeds from a nursery or garden center. Read the back of the package to determine size and color. Nasturtium seeds are brown, shriveled and about the size of a pea. In order to speed up germination, soak the nasturtium seeds overnight in a bowl of warm water.
Use a hoe to work up a patch of soil in a sunny spot in your garden or flower bed. Plant the nasturtium seeds about 10 inches apart, cover them with about 1/4 inch of soil, and water them lightly. Nasturtium seeds can also be planted in containers. Just fill the container with potting soil and poke the seed into the soil. You can bring the container indoors, but be sure to put it in a window where it will get at least four to six hours of sun each day.
Water the seeds regularly so that the soil doesn't dry out, but don't drench it. Nasturtiums don't do well in drought conditions, but they also don't like wet feet. Don’t fertilize nasturtiums, because you’ll end up with lush, green foliage but no blooms.
Deadhead, or pick the spent nasturtium blooms, regularly, and the plants will bloom all summer. You can even use nasturtium blooms in the kitchen. Fresh blossoms have a peppery flavor that tastes great in green salads, pasta or herb vinegar.