How to fertilize orchids? What fertilizer is best?

I. Fertilization Timing

Orchids have a relatively high demand for nutrients. First, there is the fertilizer used when planting or repotting, called base fertilizer. Then there is the fertilizer used during their growing period, which also includes the fertilizer used during the flowering period, called top dressing.

II. Types of Fertilizer

The base fertilizer used when planting or repotting is mainly some solid fertilizer, which contains relatively more organic matter and is beneficial for subsequent growth. The fertilizer used for top dressing is mainly liquid fertilizer, which can be purchased directly from stores and used.

III. Fertilization Methods

1. Solid fertilizer can be directly and evenly mixed with the soil when planting or repotting. The liquid fertilizer used for top dressing needs to be diluted with water, and the ratio of fertilizer to water can be controlled at about 1:200.

2. The frequency of fertilization should also be noted. If the orchid is in the seedling stage, its nutrient demand is relatively low, so it does not need to be fertilized too often, about once a month. Adult plants have a relatively higher nutrient demand, so about once every two weeks.

3. In the early stage of growth, mainly nitrogen fertilizer is used, and during the flowering period, mainly phosphorus fertilizer is used.

IV. Precautions

In winter, if the temperature is below 10 degrees, orchids will basically be in a non-growing state, and fertilization should be paused at this time, otherwise it will cause harm to the plants.