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How to topdress flowers

Last Update ：2024.11.03

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Both topdressing and repotting of flowers require attention to conditions. Appropriate topdressing can promote the growth and flowering of plants. Improper topdressing can cause fertilizer damage to plants. In severe cases, it can directly lead to the death of plants.

Conditions for top dressing

Conditions for top dressing

First, the temperature must be considered for top dressing. The suitable temperature for top dressing is between 15-30 degrees. Temperatures that are too high or too low will increase the risk of top dressing and easily cause fertilizer damage.

Second, top dressing depends on the growth form of the plant. It is appropriate to apply nitrogen fertilizer during the growth period of the plant. Phosphorus and potassium fertilizers are mainly used during the bud stage, fruiting stage and after flowering of the plant. Do not topdress the newly transplanted plants too early, otherwise it will affect the recovery of the seedlings.

Third, time should be considered for top dressing. Topdressing should not be carried out at noon in summer and autumn. When applying foliar fertilizer, it is best to do it in the afternoon without direct sunlight or in the evening, otherwise the leaves will easily be burned.

Methods of top-dressing

The first is the general method of top-dressing. When top-dressing potted plants, directly dig out the topsoil on the edge of the flower pot, add fertilizer, cover with soil and water.

Second, after mixing and dissolving the water-soluble fertilizer with water, you can directly apply foliar fertilizer or pour fertilizer water.

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Principles of top-dressing

Principles of top-dressing The principle is to "apply thin fertilizer frequently". If the appropriate dosage is not known, try to reduce the concentration as much as possible, and top-dress fertilizer frequently, but it is best to leave it at intervals of one week or more.

Special cases of top dressing

Firstly, plants in the blooming period basically do not need top dressing, but perennial flowering grasses and flowers such as dwarfs, geraniums, dianthus, and sunflowers are in full bloom. Top dressing can also be done during the flowering period.

Second, ground-planted plants do not have such strict temperature requirements, and the need for top dressing can be determined based on the growth of the plants.

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