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 Growing NasturtiumSuitable for container gardening, nasturtium (Tropaeolum) is a fast growing annual plant that reseeds itself freely. The flowers and leaves are edible and make a peppery addition to salads, pastas, or used as a garnish. Hardy annual, 12-14 inches tall.
Site Preparation:
Nasturtiums prefer full sun and average moist soil, but beware; once established it may be hard to eradicate. In hot climates plant in partial shade.
How to Plant:
Sow outdoors one week after last frost 1/4 inch beneath the surface of the soil. Seeds germinate in 7-12 days. Some of the taller climbing varieties will need support. Pinch off the spent blooms to extend the flowering season.
Insects and Disease:
Check often for aphids. If they occur, treat with an insecticidal soap or other natural pest control method.
Seed Saving Instructions:
Nasturtiums will cross-pollinate. Gardeners should only grow one variety at a time to save pure seed, or isolate varieties by 1/2 mile. Seeds are formed in pods beneath the blossoms containing around 2-3 large seeds. Pods do have a tendency to burst, so placing an old sheet or newspaper around the plants may be necessary. Picking the seedpods slightly premature is also an option.
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