Detailed Explanation of the Key Techniques for Cultivating Boxwood Bonsai

Boxwood bonsai has small, evergreen leaves and grows relatively slowly. Once pruned into a shape, it does not easily lose its form, making it suitable for indoor display as an ornamental artwork. How do you cultivate boxwood bonsai at home? Let us take a look together at the cultivation techniques for boxwood bonsai.

Cultivation Techniques for Boxwood Bonsai

1. Collect wild stumps from the mountains and countryside, prune away excessively long roots and dense branches, keep the original soil around the roots, grow them in the open ground for 1-2 years, and then pot them for shaping.

2. The growing soil for boxwood should be loose and fertile, with good drainage and air permeability. Mature garden soil or leaf mold can be used, mixed with an appropriate amount of ridge chaff ash.

3. Boxwood bonsai is best placed in a semi-shaded environment, and shade is especially necessary in summer. In winter, except in severely cold regions, it can generally overwinter outdoors; bury the pot in a wind-sheltered, sunny spot, but after frost the leaf color often turns red.

4. In summer, during high temperatures, in addition to shading, water in the morning and evening to keep the potting soil moist, but do not let water accumulate.

5. Boxwood grows slowly and is not demanding about fertilizer. Generally, apply fertilizer 1-2 times in spring, and apply decomposed cake fertilizer water once in autumn.

6. Repotting should be done every 2-3 years, preferably before sprouting in spring or after the new shoots have matured in autumn. When repotting, it is advisable to remove some old roots and remove 1:2 of the old soil, then switch to a pot one size larger to promote root development.

7. The main pests of boxwood are scale insects and the Euonymus looper. Scale insects can be killed by brushing them off by hand, or sprayed with 80% dichlorvos at 1500 times dilution. For the Euonymus looper, spray with 80% trichlorfon wettable powder, or spray with 40% omethoate at 1000-2000 times dilution.

8. When shaping boxwood bonsai, mainly use bending and tying, and coarse tying with fine pruning can also be used. Branches and leaves can be trained into cloud-like or bun-like forms. Boxwood sprouts relatively quickly, so it should be pruned regularly. Generally, after each new shoot flush, cut off the first 1-2 nodes at the tip to prevent excessive growth and maintain the beauty of the tree shape. After boxwood bears fruit, it should be removed promptly to avoid consuming nutrients and affecting growth. If boxwood bonsai is paired with elegant stones, its form becomes even more natural and beautiful.

The cultivation techniques for boxwood bonsai are briefly introduced here, and we hope they provide some reference value for bonsai enthusiasts.