# Clematis With Yellow Leaves
Clematis (Clematis spp.) are a large family of vines well adapted to a range of climate conditions. The evergreen or deciduous vines bloom in a wide variety of flower colors. The large variation of sizes of clematis makes it easy to choose one according to landscape requirement. A nutritional deficiency in clematis causes yellow foliage.
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Identification
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The excess or deficiency of nutrients in plants is characterized by discolored, faded, spotted or necrotic foliage. When high potash fertilizers are excessively applied to clematis vines, it creates a magnesium deficiency in the plants.
Damage
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The foliage of clematis vines that are magnesium deficient starts to turn yellow. The disorder commonly starts during the early growing season. Yellow color of the foliage is most apparent between the foliage veins.
Management
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You can correct magnesium deficiency in clematis by applying Epsom salts or magnesium sulfate directly to the soil at the rate of 1 oz. per 10 sq. feet, as recommended by Mary Toomey and Everett Leeds in "An Illustrated Encyclopedia of Clematis." You can also dissolve 2 ½ oz. of Epsom salts in a gallon of water and use as a foliar spray.
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