1. Pine bonsai likes to grow in places with sufficient temperature, humidity and sunshine. It is cold-resistant, cold-resistant and dry. It is usually placed outdoors. There is a saying that pine trees like dry places. Therefore, the basin soil should be kept dry, not watered, and thoroughly watered to avoid water accumulation in the basin soil, especially when new leaves sprout in spring, and it is even more impossible to water to prevent the branches and leaves from increasing sharply. In summer and autumn, the temperature is high and the air is dry. It is necessary to keep the soil moist and avoid the phenomenon of "semi-water" when it is drenched with water and there is no water below. You can also spray water on the blades in the morning and evening to increase the humidity in the air and make the blades beautiful. Flood prevention should be carried out in rainy season, and the accumulated water in the basin is easy to rot.
Black pine bonsai
Second, pine trees are barren and don't like big fertilizers. Just apply fertilizer several times a year. Fertilization should be light in spring to prevent steep branches and leaves from affecting the beauty of trees; Summer and autumn are the season when pine branches become thicker, and rotten cake fertilizer can be applied several times more; Fertilization in winter is beneficial to root development and promotes the growth and health of pine trees.
Black pine bonsai
Third, the shaping of pine trees can be carried out in the winter dormancy period, and the wheel branches, parallel branches, cross branches and symmetrical branches that affect the tree shape are cut off. If you want to adjust the position of the branches, make an idea first, and then stretch, bend, knot and trim them.
Black pine bonsai
Fourth, pine trees don't sprout vigorously, so don't prune them too much. In order to maintain the beauty of the tree, buds can be picked in March-April every year, and half or two thirds of each bud can be picked. First, strong buds are picked, and then weak buds are picked to balance the tree.
Black pine bonsai
5. Pinus massoniana and Pinus thunbergii have longer needles. Besides water and fertilizer control measures, needles can also be shortened manually. The method is to cut off new buds in June and July every year and leave 4- 15 old needles on each branch. In August, the newly grown needles have a short growth cycle, which makes them shorter, thus achieving a compact, harmonious and beautiful tree shape.
Black pine bonsai
6. Pine bonsai should be changed once every 20 13 years, and one third of the old soil should be removed and replaced with fresh, fertile and loose new soil.