Alexandra asks us to answer the following question: "My petunia seedlings will wither. What could be the reason? What can be done to fix the problem?"
Petunia makes high demands on the level of illumination. If the sun is not enough, it may fade. In this case, it is recommended to transplant the plant into a large 4-liter pot, rearrange its sunny side. Once a week, top dressing is applied. Watering occurs every three days. When located on the south side, the plant is shaded at noon.
Why else can petunia wither
When planting in open ground, it is necessary to reliably protect the plant from rain, wind. It is tender, breaks easily, can fade. The reason may be rotting of the roots, this is due to excessive watering. In addition, any pests can ruin the root system.
If petunia is planted in a hanging pot, the cause may be drying out of the soil. It is worth watering, and the trouble will be eliminated.
How to grow petunia so that it does not fade
In the first stage, the soil should be well moistened. Seeds are not sprinkled with earth. With root sprouting, humidity decreases, but a high level of lighting is required. After the first leaf appears between waterings, the soil should dry. Soil temperature is reduced, lighting is set to maximum. It is recommended to make fertilizers during this period. Then you can transplant. Humidity should be high. Ground temperature and light level drop. Feeding and growth regulators are used. Then you can transplant the petunia into the pot. It is important to monitor the temperature: at night - 13-18 degrees, during the day - from 16 to 20.
The reason that petunia leaves wither can be pests. One of them is a spider mite. If you see that the leaves are pierced with a small needle, it’s definitely a tick. You can get rid of it by treating the plant with Taurus. Among other things, “Actofit” and “Fitoverm” are used as prophylaxis. You can find out about other ways to combat the spider mite here.
The leaves also wither because there is little light, the temperature is too high, and there is not enough humidity in the air. The plant in this case wilts, because it tries to avoid moisture loss.
Due to a lack of nitrogen, the foliage may turn yellow. Lack of iron leads to the fact that apical shoots can be affected, and leaves can turn white. The absence of a sufficient amount of magnesium leads to a variegated color, subsequently the leaves not only fade, but also fall off.