How to make a bougainvillea bonsai? When is the best time to change the potting soil of bougainvillea?

As a flower with strong ornamental value, the high plasticity of the branches can be used to decorate flower art galleries, isolation belts, etc., which has a high role in promoting urban greening and spiritual civilization construction. There are two reasons why bougainvillea got its name. The first is that bougainvillea generally has three petals, and the second is that the shape of a single petal of bougainvillea is triangular. Now you should know more about it! If you are interested, there is a more detailed introduction below!

Contents of this article

1. How to make a bougainvillea bonsai

2. When is the best time to change the potting soil of Bougainvillea?

3. Why does bougainvillea not bloom?

How to Make a Bougainvillea Bonsai

Steps to make bougainvillea bonsai:

1. Choose the shape. Pruning is the main method, and tying is the auxiliary method. Young trees can be tied up according to the shape. You can also find several bougainvilleas of different colors and varieties, plant them together, and then graft them.

2. Plant bougainvillea. Select the bougainvillea you want to shape, and then plant the selected bougainvillea in the same flowerpot, with a spacing of three centimeters between the plants and branches.

3. After the bougainvillea gradually grows and the basic shape has been determined, loosen the bougainvillea. And you need to cut off the outer skin at the junction of the plant and branches, and then align the cambium for grafting. After grafting, both sides still need to be tied tightly, and at the same time, pay attention to the wound to prevent rain and watering. After it grows firmly and forms a whole, remove the binding wire.

4. Root treatment. After the joint, the part below the joint can be regarded as the root of the bougainvillea. The root can be bent and shaped according to your needs, or matched with stones to create the effect of roots hugging stones.

5. Strengthen management. Many branches will grow from the grafted parts. At this time, we need to prune the bougainvillea. When pruning, we should also pay attention to whether there is a deviation from the shape in our mind.

When is the best time to change the soil of bougainvillea?

It likes warm and humid climate, is not cold-resistant, can safely overwinter at temperatures above 3 degrees Celsius, and can bloom at temperatures above 15 degrees Celsius. It likes sufficient sunlight. It is not strict with soil requirements, grows well in well-drained, mineral-rich heavy loam, and is resistant to barrenness, alkali, drought, and pruning. Bougainvillea is native to Brazil in South America. It was not introduced to Europe for cultivation until about the 1830s, and is now cultivated in various parts of my country. It likes warm, humid, and sunny environments, is not cold-resistant. Except for the southern region of my country, it can be cultivated in the open field overwintering, while other regions need potted plants and greenhouse cultivation. Well-drained sandy loam is the most suitable soil. Bougainvillea is often propagated by cuttings, and seedlings are easy to raise. In May and June, mature lignified branches are cut, 20 cm long, inserted into sand pots, covered with glass, and kept moist. Roots can be taken in about a month, and flowers can bloom after two years of cultivation. The flowering period of the whole plant is very long, up to three or four months. During the flowering period, there are many fallen flowers and leaves, which need to be removed in time to keep it fresh and beautiful.

Why does bougainvillea not bloom?

Insufficient growth space: Change the flower pot to one that is 1.5 times larger than the root system. Insufficient light: Provide sufficient light for bougainvillea every day, and pay attention to shade at noon in summer. Too dense branches: Prune in time, cut off diseased and weak branches, save nutrients and promote flower bud differentiation. Improper water and fertilizer conditions: Pay attention to water control before flowering, apply fertilizer in time, and increase phosphorus and potassium fertilizers. Bougainvillea has a well-developed root system and grows rapidly, so it needs to be repotted in time. Bougainvillea planted in the open field in gardens and courtyards often blooms luxuriantly because its root system has a large growth space and can extend without limit. However, family potted plants are limited by the size of the flower pot. If the pot is not changed in time, the root system will not grow well, which will inevitably affect flowering. Solution: Change to a larger pot in time. According to the growth condition of the plant, it is usually necessary to repot when the ratio of plant to pot is 3:1. Repotting is carried out in spring and autumn every year, and plants with better growth are repotted once or even twice a year.