What to Do If Your Radermachera (Happy Tree) Grows Too Tall? A Few Easy Tricks to Control Its Height
I. Control Height by Pruning
1. Pinching
Use your hands or scissors to pinch off or cut away the tip of the plant's main stem or small branches, so as to control growth at the top and let the lower branches grow. This will produce more side branches and ultimately more flower heads, and the plant's shape will also become more graceful. This process is called pinching, or topping, or tip removal.
2. Heading Back
If the Radermachera (Happy Tree) grows too tall, it will affect indoor cultivation, so at this point appropriate pruning or heading back is needed. The best time for heading back is in spring when new branches have just sprouted; at this time you can cut off the entire upper part of the plant, and this process is called heading back. In addition, when heading back, note that you should not do it too casually; always pay attention to the height of the Radermachera. If it really is too tall, you can head it back, but if it is not especially tall, then it is not suitable to do so, otherwise it will have the opposite effect.
3. Thinning
When thinning it, the main targets are small branches, flowers, flower buds and leaves. When it grows too tall, it not only affects its appearance, but ventilation and light penetration also decrease. So at this point thinning is the best choice for controlling height. When thinning, remove the overly dense leaves or pinch off the flowers in places where growth is too thick, thereby encouraging side branches to sprout. This way it will grow more flower heads, making the Radermachera's shape and flower color even better looking.
II. Points to Note
1. When pruning, always pay attention to its growth height. If it is not especially tall, do not prune excessively, otherwise it will affect the plant's growth.
2. After pruning, frequently loosen the soil and apply fertilizer to ensure it grows faster.