1 insufficient lighting

The soil is too fertile, and there are too many fertilizers, especially nitrogen fertilizers.

3. Too much water at the beginning of flowering

Second, the improvement measures

1 Increase the light as much as possible.

2. Strictly control the fertilizer content, and properly apply some phosphate fertilizer instead of nitrogen fertilizer.

3 control watering and don't let the branches and leaves flourish.

Water control and long flower triangle Mette likes strong light and high temperature, is not afraid of sun exposure, needs little water, and the basin soil needs to be kept moist. We must control the water 1 month in autumn and winter, and keep it semi-dry and semi-wet, even if the green leaves wither. Controlling water is beneficial to the growth of flowers, which is also the reason why domestic bougainvillea "does not bloom frequently, but is lazy to spend constantly".

In the process of cultivation, you should always pick the seeds and form clusters of low plants. You can also set up a bracket to let it climb up. Bougainvillea is a light-loving plant. Whether it is cultivated indoors or in the open field, it should be placed in a sunny place or cultivated in a sunny place. Change pots before germination in spring, water them in time in summer and flowering period, and reduce water appropriately after flowering. The principle of daily watering is "wet and dry". Fertilize 1 time in slow growth period, fertilize 1 time in vigorous growth period for half a month, and add phosphate fertilizer in stages at flowering period. There are many fallen leaves during flowering, so it is necessary to clean them in time to keep the plants clean and beautiful. Prune trees after flowering, adjust tree vigor, cut off dead branches, dense branches, weak branches and branches, promote the growth of more robust new branches and ensure the prosperity of flowers. It can be re-cut and updated 1 time in about 5 years. Water should be controlled in winter, so that plants can fully sleep, so that the flowers in spring and summer next year will be more colorful.