What to do if the leaves of Cineraria turn yellow

Yellowing of Cineraria Leaves – Boron Deficiency

Boron deficiency can cause the leaves of Cineraria to turn yellow. If Cineraria is deficient in boron, the internodes at the top of the plant will shorten, become fragile and easy to break, and the new leaves will grow slowly and turn yellow. This is mostly because the soil is relatively dry, which affects the absorption of boron by the roots. Generally, when this phenomenon occurs, you should water the plant in time, and then keep the soil in the pot dry and moist. You can also spray some borax solution once a week. Spray 2 or 3 times in a row and the situation will improve.

Yellowing of Cineraria leaves - calcium deficiency

Calcium deficiency can sometimes cause the leaves of cineraria to turn yellow, which is usually manifested as the edges of the leaves turning yellow and the leaves curling outward. At noon, the leaves will curl inward and recover in the evening. Generally, cineraria lacks calcium because of the low content of organic fertilizer. At this time, you can apply some organic fertilizer. Water it immediately after applying the fertilizer and spray it with calcium chloride solution. Spray it once every 10 days, and 2 times will be enough.

Yellowing of Cineraria leaves - Potassium deficiency

When cineraria is deficient in potassium, the edges of its leaves will turn from brown to withered yellow and continue to expand inward. Generally, applying an appropriate amount of potassium sulfate at the roots and spraying some potassium dihydrogen phosphate solution on the leaves of cineraria can help it recover and grow normally.

Yellowing of Cineraria leaves – magnesium deficiency

Lack of magnesium will also have an adverse effect on the growth of cineraria, causing its leaves and flowers to turn yellow and continuously aggravate the damage. You can spray some magnesium sulfate solution 2-3 times to restore growth.

Yellowing of Cineraria leaves – dry winter

When growing cineraria in winter, it is best to maintain a suitable humidity. It should not be too dry. Too dry will cause the cineraria to wilt, turn yellow easily, and be prone to disease. So you must water it properly during winter.