What is the best fertilizer for petunias?

Petunia fertilization time

When planting or repotting petunias, you can apply slow-release fertilizer and chicken manure. The earlier the fertilization time, the better. It should be done when the flower buds are small. When it blooms, add fertilizers such as potassium dihydrogen phosphate to promote flower growth. During the growth period, topdressing should be applied according to its growth trend.

What fertilizer to use for petunia

Nitrogen fertilizer can be applied during the growing period of petunia to promote the development of branches and leaves. Phosphorus and potassium fertilizers need to be added before flowering, which can ensure that the flower color is brighter and prolong the flowering period.

Petunia fertilization method

Petunia has a greater demand for nutrients during its growth period. Therefore, in order to make its root system strong and its branches and leaves lush, it is necessary to apply compound fertilizers and fertilizers containing calcium and magnesium alternately. For varieties that like fertilizer, the amount applied each time can be increased appropriately. If the leaves turn yellow, it is mainly caused by a lack of boron and calcium, which can be remedied with boron or calcium compound fertilizers.

Precautions for fertilizing petunia

When planting petunias, sufficient base fertilizer should be applied. You can choose organic fertilizer, chicken manure fertilizer, cake fertilizer, bone meal, etc. During the flowering period, water-soluble fertilizer should be used as the main fertilizer. Dilute it with water in a certain proportion and then pour it into the soil. This will allow the roots to better absorb nutrients and thus sprout more flower buds.