The pot for Rhododendron planting should be a slightly deep oval or rectangular pot, which is mainly made of red pottery or glazed pottery. The color of the basin should be darker as far as possible to form a contrast with the design. It's better not to have flower decoration on the basin. If you want to plant cliff bonsai, you can choose deep thousand tube basin. If you want to plant roots, you can choose elliptical shallow basin.
In order to grow strong and strong Rhododendron branches, fertile and loose rotten leaf soil or mountain soil in pine forest should be selected. It's hard to breed mountain soil for family. It can also be made of dried, frozen and loose pond soil or paddy soil, which is well combined with sand.
In the early spring on the basin, or after falling flowers planted. If conditions permit, wild Rhododendron stumps in mountainous areas can be excavated and directly planted with a small amount of original soil. After returning home, cut the straight root of Rhododendron, and put the chicken manure or bean cake discussed on the bottom of the basin (if you think it smells, you can buy the base fertilizer for use).
Generally, cuckoos need to grow for 3-4 years after being put into pots, and can be shaped. Direct excavation of the year can shape. Note that the branches of Rhododendron are fragile, so it is not allowed to over climb and tie them. Only the trunk of Rhododendron can be properly shaped and tied with brown silk. When pruning, the weak branches should be cut off and the heavy branches should be cut off.
Here comes the point.
The modeling of Rhododendron should follow the principle of first thick and then thin, and the main body should be properly coiled, and other branches should be mainly pruned.
Common shapes:
The common tree form is the straight stem type.
Curved trunk type
Oblique dry type
Of course, there's the root style.
Cliff style
Connecting style
According to the plants and their abilities, we can achieve the beautiful bonsai of flower, stem, root and shape.
Rhododendron likes warm and humid environment, which requires good ventilation. Usually, the plant can be placed in a bright place. The potted Rhododendron is mainly for the purpose of appreciating flowers. In the middle of summer, it should be properly shaded, but it can't be placed in a completely shaded environment, which will lead to excessive growth and affect flowering. In winter, move to the sunny place, keep the indoor temperature above 0 ℃, water properly, and ensure the basin soil is wet.
Rhododendron likes to be wet. The pot soil should be kept wet during the growth period, but no water should be accumulated. For the bonsai with a thick trunk, water can be sprinkled around the plant to increase the air humidity and prevent the leaves from drying up. The open root bonsai can cover a layer of soft grass on the surface of the basin soil to prevent the sun from burning the tender root.
The Rhododendron potted landscape is often applied with thin fertilizer once every 15 days to prevent the occurrence of yellow disease. When applying fertilizer, a small amount of black alum is added to the fertilizer solution to ensure the bright color of the leaves. One or two times of phosphate fertilizer was applied before flowering to promote the blooming of flowers.
Bonsai also needs to be turned over in time. Turn basin once every 2-3 years, in early spring and late autumn. When turning basin, remove 1 /3 of the old soil, cut the old roots and replace with new soil. The roots of Rhododendron bonsai are basically on the surface of the soil, so it is necessary to keep the surface soil when turning the basin.