Before planting the verbena bonsai, trim the verbena stump, cut off withered, damaged, aged and overlapping branches and leaves on the plant, and control the temperature between-10~30℃ to ensure that the soil is loose, fertile and weakly acidic. Once every 3~5 days in spring and autumn, once every 1~2 days in summer and once every 7~ 10 days in winter.

Preparation before planting

Before planting bonsai in iron whip, it is necessary to prune the stumps in iron whip to prune the damaged roots or branches on the stumps, so as to avoid bacterial infection during the growth process and affect the growth and development of the whole plant. Iron whip mainly grows in limestone mountainous areas. Be careful when mining to avoid damaging plants.

Sowing and cutting

In the process of cultivation, iron whip bonsai is mainly propagated by sowing and cutting. Choose garden soil, sandy soil, peat soil and humus mixed soil to ensure that the soil is loose, fertile and weakly acidic. The temperature should be controlled between-10~30℃ to ensure sufficient illumination time.

Dressing and shaping

In the cultivation of iron whip bonsai, it is necessary to trim and shape iron whip, which is usually combined with pruning and rolling. After two years of growth, cut off the bent, fragile and harmful branches with a diameter of 0.3~0.5cm, wrap them with aluminum wire, and make them into the required shape at the winding and binding place.

Water and fertilizer management

When planting iron whip bonsai in spring and autumn, water it every 3~5 days, apply appropriate agricultural fertilizer and thin cake fertilizer, and water it every 1~2 days in summer. When the temperature is too high, sprinkle water on plant leaves and their surroundings, apply appropriate amount of nitrogen and phosphorus fertilizer, and water once every 7~ 10 days in winter to reduce water.