How to grow Verbena in winter

Temperature control

Verbena likes warmth and is not cold-resistant. If the temperature is below 4°C in winter, it will enter a dormant period. If the temperature is too low, it may cause the death of the verbena. Therefore, in winter, the verbena should be moved indoors to ensure a suitable temperature. The most suitable temperature for its growth is about 15-25℃. In a suitable environment, the verbena can bloom in winter.

humidity

Verbena has high requirements for the surrounding air humidity. If the air is too dry, the flowers will wither faster. The air humidity is most suitable at 65-75%, especially in the north. The air is relatively dry in winter, so you should pay attention to keeping the air moist.

illumination

The temperature is low in winter, so it is especially important to ensure that the light-loving petunia receives enough sunlight. In winter, it is recommended to move the flowers to a location with relatively sufficient light for maintenance to ensure that the plants can receive enough light, promote energy conversion, and help the plants grow better.

Watering

Water the petunia in moderation. Too much or too little water is not conducive to its growth. If there is too much water, it will cause the plant to grow too tall and have thin branches; if there is too little water, the plant will stop flowering and start to produce seeds early.

prune

Timely pruning of old branches with many dead leaves and residual flowers can effectively extend the flowering period.

Prevention of pests and diseases

Verbena is highly resistant and not prone to disease or insect infestation, but whiteflies are an exception. Once infested by whiteflies, the flowering process and quality will be greatly affected. It is also relatively easy to get rid of whiteflies. You can drop a few drops of DDT on a cotton ball, put it in the flowerpot, and then cover the flowerpot with a plastic bag. Do this once every three days. Generally, all the whiteflies can be killed by fumigation two or three times. In addition, regular cleaning of potting soil and garbage can also effectively prevent the occurrence of pests.