What is the best fertilizer for rubber trees?

Rubber tree fertilization time

Rubber trees need to be fertilized in time during their vigorous growth period, mainly in summer. At this time, the demand for nutrients is very high, so the frequency of fertilization should be increased. Use humus cakes to soak in water, and then mix with liquid fertilizer containing phosphorus and potassium elements for application.

If you apply fertilizer in spring and autumn, it is generally done every 3 weeks. In summer, the demand for nutrients is high, so you can apply fertilizer once every half a month.

During the growth period of the rubber tree, topdressing can be applied once every half a month, mainly nitrogen-containing fertilizers. If the colored species grows slowly, phosphorus and potassium fertilizers can be applied.

What fertilizer to use for rubber tree

1. Apply basal fertilizer during spring budding

Rubber trees will sprout a lot in spring and then enter a period of vigorous growth. At this time, when repotting, you can add some base fertilizer to the soil. The base fertilizer can be cake fertilizer, bone meal, livestock manure, organic fertilizer, etc. The amount used is about one-tenth of the soil, which can improve the fertility of the soil.

2. During the summer growing season, nitrogen fertilizer is the main fertilizer

Summer is the peak growth period for rubber trees, and they have a great demand for nutrients. Fertilizer can be applied 1-2 times a month, generally with nitrogen fertilizer as the main fertilizer and phosphorus and potassium fertilizer as the supplementary fertilizer to promote leaf growth.

Rubber tree fertilization method

Rubber trees have a high demand for nutrients and need to be fertilized every 15 days or so. During the spring and autumn seasons when they grow normally, fertilizer should be applied every 20 days or so. After autumn, fertilization should be reduced or stopped to help them overwinter.

Precautions for fertilizing rubber trees

When planting rubber trees, base fertilizer will be used. It needs to be fully decomposed before use. Avoid using raw fertilizer or concentrated fertilizer to avoid affecting the growth of the root system.