Nasturtium Leaf Types
Nasturtiums are annual plants known for their bright red, orange or yellow flowers. The leaves are attractive in their own right, and bear little resemblance to most garden plants. Nasturtiums tolerate heat, poor soil and drought. They thrive in slightly moist soil and full sun. Add the peppery flowers and leaves to salads for a fresh taste and appearance. Does this Spark an idea?
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Growth
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Nasturtiums are easily sown from seed directly in the garden two weeks before the last frost. Start them indoors four weeks before the last frost, or buy transplants for earlier blooms. The new leaves emerge in seven to 14 days, depending on growing conditions. The first leaves are elongated ovals about 1/2 inch in length. The plant soon develops real leaves and then flowers eight weeks after planting.
Identification
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Nasturtium leaves have a rounded form, with prominent veins. The stalk is attached to the middle of the leaf. Nasturtiums may form on vines, depending on the variety, or on short stalks. The leaves are bright green or variegated green and cream, and have a unique appearance that makes the plant attractive even when not in bloom. Nasturtium leaves range in size from 1 inch across to 4 inches across, depending on the age of the leaf and the plant variety.
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Uses
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Nasturtiums are native to the Americas and were introduced to Europe by early explorers. Nasturtiums were originally used as an edible crop. Their leaves and flowers have a peppery taste that resembles watercress. Today, nasturtiums are used primarily as landscaping plants. Their bright blooms and unusual leaves add interest to containers or flowerbeds.
Considerations
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When given too much water or fertilizer, the plants produce excessive leaves and few blossoms. These conditions can also contribute to fungal diseases. Diseased nasturtium leaves may become blotchy or yellow. To keep nasturtium leaves healthy, plant nasturtiums so air circulates freely. Remove any diseased plant material and keep the soil slightly moist.
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References
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