Fertilization method for potted camellia

Nitrogen fertilizer to promote spring shoots

Generally, when the temperature is around 18℃, camellia begins to sprout spring shoots. At this time, bud-destroying fertilizer mainly composed of nitrogen fertilizer should be applied about once every 10 days until the spring shoots begin to lignify. Alternatively, you can spray the leaves with a dilute solution of potassium dihydrogen phosphate, urea and rice vinegar at the same time. In this way, after multiple root and leaf spraying, the spring shoots will grow very lush, the leaves will be able to stretch to the maximum, and the branches will be able to accumulate rich nutrients, creating very good conditions for flowering.

Apply more phosphorus and potassium fertilizers for flower buds and flower bud differentiation

After the camellia shoots have grown enough in spring and entered the lignification stage, there will be a short semi-dormant period. At this time, the camellia will enter the growth period and the flower buds will begin to differentiate. If you want the camellia to form more buds, you should apply more phosphorus and potassium fertilizers, and less or no nitrogen fertilizer. This can not only control the excessive growth of camellia branches, but also promote and shorten the time of flower bud differentiation, which will be more conducive to the formation of flower buds.

It is not advisable to apply fertilizer in midsummer

The weather is hot in midsummer and camellia grows slowly, with most plants entering a semi-stop state. It is not advisable to apply fertilizer at this time, especially concentrated fertilizer. If the soil is poor, you can apply a little dilute liquid fertilizer while watering to improve the soil quality.

In autumn, apply a mixture of phosphorus and potassium fertilizers.

The sky is high and the air is crisp in autumn, which is the period when camellia plants accumulate nutrients. In order to safely overwinter, you can apply a mixed fertilizer mainly composed of phosphorus and potassium fertilizers once every half a month, or spray it on the leaves, which can promote plant health and improve the camellia's resistance to cold.

It is advisable to apply dilute phosphorus and potassium liquid fertilizer in winter

Camellia enters a semi-dormant period in the cold winter and does not require much fertilizer. When camellia is brought indoors, its vegetative growth has entered a dormant state, but its reproductive growth has not completely stopped, so it should be combined with watering and application of dilute phosphorus and potassium liquid fertilizer. (Avoid applying concentrated fertilizer) to prepare for the next season's flowering.