How to care for French marigolds

French marigold is an annual herb with a long flowering period and colorful flowers. It is a highly ornamental species of Compositae. How to care for French marigold leaves blackening or rolling up? Let's look together.

French marigold care for leaves blackening

The blackening of French marigold leaves is a disease called leaf blight, which can cause irregular black spots on the leaves. When we care for French marigold, carbendazim WP should be sprayed in time. French marigolds suffer from stem blight and need to be sprayed with chlorothalonil solution every week. Water your French marigold thoroughly every time you water it to avoid standing water that can cause root rot. Control the temperature between 22 ~ 24℃ for heat preservation and moisture preservation. The following are details of French marigold care for leaves blackening.

The black leaves of French marigold are infected with leaf blight, and irregular black spots will appear on the leaves. If not prevented in time, French marigold leaves will gradually fall off. When we care for French marigold, the damaged leaves need to be removed in time. Carbendazim WP should be sprayed every 10 days for 2 or 3 consecutive times, and the leaves will gradually recover.

French marigold has dark leaves and may have suffered from blight. With no air circulation and high temperature, small black knobs will appear on the roots of French marigold, leading to the gradual death of the branches and leaves of French marigold. When we care for French marigold, it is necessary to spray chlorothalonil solution once every week and continuously spray it for 2 or 3 times, and the leaves will gradually recover.

The roots of the French marigold are rotting because of the water, which is not properly watered, and the leaves are blackening and falling off. When we care for French marigold, water the French marigold thoroughly every time you water it, and wait until the surface of the soil is dry before watering, ensuring that the soil alternates between wetting and drying. In summer it can be watered 1 time a day, the rainy season rains more, and do a good job of soil drainage.

The growth temperature of French marigold is between 22 ℃ and 24℃, which can promote the continuous growth and flowering of French marigold. When the environment is dry, water can be sprinkled in the air and on the leaf surface to do a good job of cooling and moisturizing. When we care for French marigold in winter, French marigold needs to be moved indoors for maintenance to avoid frostbite caused by low temperatures.

French marigold care for leaves rolling up

French marigold leaves are rolled up and need shade protection from the strong sun. When we care for French marigold, give the French marigold plenty of water to keep the soil moist. Control the temperature between 22 ~ 24℃, do a good job of cooling and moisturizing. Every time you fertilize a French marigold, dilute it and use it to avoid root burning. The following are details of French marigold care for leaves rolling up.

1. Shading care

Summer light is strong, easy to cause French marigold sunburn, leaf curl. The French marigold needs to be moved indoors for shade protection. When we care for French marigold, keep the French marigold in a well-ventilated place to ensure daily sunlight scattering. Let the leaves of the French marigold photosynthesize constantly, encouraging the petals to bloom.

2. Water care

French marigold likes wet conditions. Without enough water, French marigold leaves will shrivel and turn red. As the temperature rises, water can be watered once a day to keep the soil moist. When we care for French marigold, water the French marigold thoroughly every time you water it, to avoid standing water that can cause root rot. Drainage of the soil during the rainy season is more frequent.

3. Fertilizating care

In the process of fertilizing French marigold, the leaves of the French marigold will curl up due to the root burning phenomenon caused by the high concentration of fertilizer. Fertilizer should be stopped, and timely watering should be carried out for tilting treatment, so as to effectively promote the absorption of French marigold root. Fertilizer should be diluted and used to promote the continuous growth of French marigold.

4. Temperature care

The growth temperature of French marigold is between 22 ℃ and 24℃, which can promote the continuous growth and flowering of French marigold. When we care for French marigold, when the environment is dry, water can be sprinkled in the air and on the leaf surface to do a good job of cooling and moisturizing. When the temperature drops in winter, French marigold needs to be moved indoors for maintenance to avoid frostbite caused by low temperature.

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