How to grow petunias in autumn

1. Is autumn maintenance important?

For petunias, autumn care methods are more important. Because the temperature is slowly dropping during this period, the climate changes dramatically, and the maintenance methods before and after will change greatly, so the maintenance requirements are high. In addition, although its main flowering period is in summer, it may also bloom in winter, so maintenance in autumn becomes even more important because it is necessary to accumulate enough nutrients for flowering, otherwise it will not be able to bloom in winter.

2. How to maintain

1. Temperature: Temperature is very important because the temperature changes are most obvious in autumn. The most suitable temperature is between 13 and 18 degrees. In early autumn, the temperature may still be relatively high, while in later autumn, the temperature will be relatively low and there is a risk of frost damage. Therefore, the maintenance before and after is very different and must be adjusted according to the specific situation.

2. Light: Light is similar to temperature. The light is strong in early autumn and then gradually weakens. Therefore, while avoiding too strong light, provide appropriate light to accumulate sufficient nutrients for flowering in winter.

3. Ventilation: Proper ventilation can reduce the occurrence of diseases, pests and insects.

4. Pruning and fertilizing: Its flowering period is mainly in summer, so the withered flowers must be cut off in autumn, and the flower branches can be cut off together to promote the next flowering. In addition, after pruning, it is necessary to add an appropriate amount of fertilizer.