How to make petunias bloom in winter? Why do petunias curl their leaves?

Petunia is a type of morning glory, and its flowers are white, purple, red and other colors. Petunia has bright colors and a variety of colors, giving people a festive feeling. In addition, it will fill the entire flower pot during its vigorous growth period, so many flower lovers like it. So how do you make petunias bloom in winter?

How to make petunias bloom in winter

In the winter in the north, there is heating in the rooms, and when the heating is on, the temperature can reach 18 to 25 degrees, which is the most suitable temperature for the growth of petunias.

Petunia is a flower that loves sunlight very much. If there is no light, the petunia will not bloom even if the temperature is high. Therefore, if you want the petunia to bloom, it needs sufficient sunlight. We can place the petunia on a sunny balcony, so that even in winter, the petunia will bloom well.

The planting soil should be fertile and loose, with not too much water. You can water it when it is dry. When the temperature is high in summer, just provide slight shade, but not complete shade. Leave a little sunlight, and pinch and top it more often so that it can grow more side buds and branches, and it will bloom more.

What is the problem with petunia leaf curling?

Hormone poisoning

Assuming that you spray the flowers frequently, for example, once every few days, then if it is this season, the temperature is relatively low, and the weather is not very good, there is no condition for the virus to spread, and it is very likely to be hormone poisoning.

If it is hormone poisoning, then we should stop spraying the flowers immediately and wait until the weather is better. During this period, we should apply some useful medicines. The new leaves that grow after injection are normal, but the old leaves will not recover.

Once hormone poisoning occurs, stop spraying the flowers immediately and apply Bihu. When the leaves curl up, it will affect photosynthesis.

Soil clay problem

Many people use clay, which is too sticky and retains water but is not breathable enough. In this case, the soil should be changed or a substrate should be used. Be careful not to use dry substrate directly. Use clean water to make it semi-dry and semi-wet.

Is it just planted?

It is normal for newly planted plants to have curled leaves, as they are not getting enough nutrition. Just expose them to more sunlight and they will recover after a few days.

Lack of water

If watering is not timely, add some water and put it in a cool place to slow down.

Watering too frequently

This should also be noted. Everything has a limit, never too much. Just like applying foliar fertilizer to some crops, it is worse if you apply too much, because the root system will become dependent. You must control the degree.

Too much fertilizer, especially nitrogen fertilizer

There are many factors that cause leaf curl. Plants cannot speak, but they can express themselves. We also need to judge based on other phenomena, such as whether the leaves are yellowing, whether there are leaf spots, etc.

How to plant petunias

Seedlings

Morning glory is a sun-loving plant with strict requirements on temperature, especially during the seedling raising period. Generally, we choose to start seedling raising in mid-March or April, when the temperature is suitable for petunia seedling raising. First, prepare some seedbeds for seedling raising, spray some nutrient solution, and maintain a good humidity. Generally, sow about 1 gram per square meter of seedbed, and spread the seeds as evenly as possible. The temperature is controlled at about 20 to 24 degrees. Use a sieve to dry fine soil and sprinkle a layer lightly. Note that you only need to cover the seeds slightly. Petunia seeds are very small. If you find it difficult to spread, you can choose to mix them with soil and spread them together.

transplant

After about 5 to 6 days, the petunia will grow a leaf, and then it can be transplanted in a 10 cm deep artificial tube (with some treated soil in it). At this time, you should try to put the seedlings in a sunny place, but not in direct sunlight. No fertilizer is needed during this period. There is no exact date for watering. It should depend on the moisture of the soil. As long as it becomes dry, start watering. Wait until the petunia grows six or seven leaves, and then put it in the final flowerpot or other container.

Nursing

In fact, care is very simple, just prune and water, spray some prepared spray if there is a lack of nutrients. During the period, pay attention to the looseness of the soil, ensure the root system's need for oxygen, and water appropriately. The principles of watering are still based on the actual growth conditions, and these are all gained through experience.