What fertilizer should be applied during the flowering period of azalea? Can potassium dihydrogen phosphate be sprayed?

1. What fertilizer to apply

It is best not to fertilize azalea during its flowering period, because if it is not properly controlled, the flowering period will be shortened and the buds may fall off. Before it blooms, some phosphorus and potassium fertilizers need to be applied, but the nutrients before flowering are enough for the plant to bloom, so try not to apply fertilizer during the flowering period. However, nutrients should be replenished as soon as possible after flowering.

Not only should you not apply fertilizer during the flowering period, you should also not spray water on the flowers, as this will cause the flowers to wither. Sometimes, the plant grows vigorously and may produce many flower buds. The weaker buds can be pruned appropriately.

2. Can potassium dihydrogen phosphate be sprayed?

You can spray potassium dihydrogen phosphate on azalea to promote better flowering, help the branches grow healthily, and extend the flowering period to a certain extent. When using it, you should pay attention that it is better to use it when buds are formed, but do not use it on rainy days or in strong sunlight. The time of use can be selected before 10 am or after 4 pm.

3. Precautions for fertilization

When fertilizing azaleas, be sure not to use concentrated fertilizers, but rather apply dilute fertilizers. In addition, the amount of fertilizer should not be too much. No matter whether it is concentrated fertilizer or large amount, it will burn the roots of the plant.