1、 Soil

For Petunia breeding, loose sandy loam with good drainage should be selected, because it is afraid of water, so the drainage must be better to avoid rotten roots

2、 Watering

Watering should be appropriate at ordinary times, and the amount of watering should not be too much or too little. Generally, when the temperature is high in summer, it is necessary to keep sufficient water and water it in time, but it is necessary to ensure that there is no ponding in the basin soil. Drainage measures should be taken when it is rainy to avoid root rot caused by ponding. If there is too much rain during flowering, the flower color will become dim

3、 Temperature and light

The suitable temperature for Petunia growth is 13-18 ℃, and the temperature should be controlled at 4-10 ℃ in winter. If the temperature is too low, it will stop growing. Both ground and potted plants should be kept sunny. If the sunshine is insufficient, the flowering will become less and the quality of flowers will be very poor. It is best to give it 12 hours of light every day

4、 Trim in time

It's a vine, so it's best to prepare a support and insert a rod on the flowerpot so that it can grow around it. Also prune properly. When it grows to about 7 leaves, pinch off the top to make the flowers bloom more and bigger

5、 Precautions

Petunia is prone to aphids. Don't spray fenvalerate after discovery, so as to avoid drug damage and hinder its normal growth