Keep enough light. Five-needle pine likes sunshine, is cold-resistant, afraid of heat and avoids shade. In hot summer, high temperature is not conducive to its growth. Should be given shade, a little cooling, to facilitate growth. Osaka pine is less resistant to sunlight than common five-needled pine, and more attention should be paid to proper shading in summer.

(2) Controlling the watering of Pinus pentaphylla can resist drought and avoid moisture, and proper water conservation can shorten the needles, especially during the period from germination to needle emergence. If you water too much, the needles will become longer, and stagnant water will easily cause root rot and death. It is advisable to dry the soil slightly. Of course, watering should be different in different seasons and different periods.

(3) Controlled fertilization: American ginseng is barren-tolerant, so it is not suitable to apply more chemical fertilizer. Applying more chemical fertilizer or concentrated fertilizer is easy to damage the root system, which is not suitable for fertilization in high temperature season and can cause tree death in serious cases. Controlled fertilization can shorten needles; Fertile needles will become longer, usually in spring, and each fertilization is 1 to 2 times. Potted plants apply less fertilizer in the same year.

(4) The basin should be small and shallow, and the basin should be slightly small and shallow to avoid being too big and too deep. Small pots are beneficial to short leaves, while large pots are easy to accumulate water and rot roots. Deep basin can be used for cliff type, and the basin bottom needs to be padded with broken tiles for drainage and ventilation. Zhangzhou garden