How to fertilize rhododendrons and what to do if you fertilize too much

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1. Fertilization method

2. What to do if you apply too much fertilizer?

To fertilize rhododendrons, you can choose organic fertilizer or liquid fertilizer. Fertilizer should be applied once a week from March to May. There is no need to fertilize until dormancy in summer. In September in autumn, some phosphorus and potassium fertilizers can be applied, but in winter, fertilization should be stopped. The amount of fertilizer should be small, and it should be applied thinly and frequently. If the amount is too large, it can be dealt with by watering or changing the soil in the pot.

1. Fertilization method

1. Type: When fertilizing rhododendrons, you should choose the type that is suitable for it. You can usually apply organic liquid fertilizer or organic fertilizer to it. Reasonable fertilization can be more conducive to its flowering. .

2. Time: in 3-5 years, You can fertilize almost once a week, and it will grow better if it has sufficient nutrients. It will go dormant when the temperature rises from June to August in summer. There is no need to fertilize at this time, otherwise the roots will burn and turn yellow. In September in autumn, it will resume growth and you can apply phosphate fertilizer and liquid fertilizer to it. You can stop fertilizing until October in autumn and winter, otherwise it will not be easy to survive the winter.

3. Fertilizer amount: For newly grown seedlings, there is generally no need to fertilize. The usual amount of fertilizer should be controlled, usually no more than 20g each time. If you apply too much fertilizer, it will also burn the root system of the plant.

2. What to do if excessive fertilization

1. If an excessive amount of water-soluble fertilizer is applied, it can be washed by watering a lot, so that the water can take away the excess fertilizer and avoid damage to the root system of the plant.

2. In order to prevent the plant roots from rotting, you can also water an appropriate amount of fungicides and rooting agents, which can effectively reduce bacterial growth, and rooting agents can promote root recovery.

3. However, if unfermented fertilizer is applied, the pot must be removed and the old soil must be replaced. If the roots are rotten, they need to be pruned and disinfected, and then potted again.

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