What is the best fertilizer for roses?

Rose flower fertilization time

During the growing season, roses should be applied with nitrogen fertilizer every 15 days to promote the growth of branches and leaves. Phosphorus and potassium fertilizers should be applied before flowering, three times a month. Some cake fertilizer should be applied after flowering. Organic fertilizer and superphosphate need to be applied after planting in autumn.

Roses need to be fertilized once before winter to improve their cold resistance. During the flowering season, they can be fertilized once a month. If planted in the ground, they need to be fertilized before budding, after budding, before flowering, after flowering and before fruiting.

What fertilizer to use for roses

The main fertilizers for roses are nitrogen fertilizers and phosphorus and potassium fertilizers. Nitrogen fertilizers are mainly used during its vigorous growth period, which is beneficial to the healthy growth of branches and leaves. Phosphorus and potassium fertilizers can be applied before flowering to promote the flowering of the plant. When fertilizing it, it must be applied in small amounts and multiple times, otherwise the roots will rot.

Rose fertilization method

When planting roses, you need to apply decomposed organic fertilizer. In March, you can apply light fertilizer to promote the growth of branches and leaves. In April and May, you can apply phosphorus and potassium fertilizers 2-3 times to promote flowering. After flowering, you can apply rejuvenation fertilizer. Fertilizer needs to be applied once before winter to promote the smooth overwintering of the plants.

Rose fertilization precautions

When feeding roses, you should pay attention to applying thin fertilizers frequently with low concentrations. When using base fertilizer, it needs to be fully decomposed and raw fertilizer cannot be used. In addition, you need to water the roses once the next morning to prevent root rot.