If the bougainvillea blooms earlier than the desired time, you can slow down the blooming of the bougainvillea by stopping fertilization, shading, and lowering the ambient temperature.

It is relatively troublesome if the flowering period of Bougainvillea is postponed. When it is close to the flowering period, conventional management cannot reverse this situation. Therefore, corresponding measures should be taken several weeks before the flowering period to ensure the normal growth and development of the plants and ensure that the flowers bloom as scheduled.

You can increase the application of topdressing, especially the method of foliar fertilization to promote flowers. The most common method is to spray the plants with potassium dihydrogen phosphate (with a concentration of 0.2%-0.5%) once every few days. Treatment by this method, and appropriate increase in light, is quite effective for prompting the flower buds to expand rapidly and bloom normally.

For facility cultivation, you can increase the temperature in the Bougainvillea facility. For most ornamental plants, increasing the ambient temperature can effectively promote the rapid blooming of flowers.