1、 Is it normal for leaves not to open their backs

It's called turtle's back or bamboo's back. We usually see some holes on the back, which are very round. If the bamboo is complete and round without any holes, like dripping Guanyin, it may be that it is not old enough. It is normal that the leaves do not open their backs at the seedling stage, and the root system is not mature, which is the reason for its own growth. If the leaves don't open at the growth stage, it may be due to the influence of external factors, and the maintenance is not correct, so it needs to be adjusted

2、 How to promote back opening

1. Changing pots and soil: in order to promote the back opening of the leaves of Phyllostachys pubescens, it is necessary to ensure the basic factor of soil. You can change pots and soil every 1-2 years to provide loose, breathable and fertile mixed soil, and add a certain base fertilizer when putting on the pot

2. Regular fertilization: the growth rate of Phyllostachys pubescens is very fast. Nutrients must meet the growth needs. Regular fertilization is required. Organic fertilizer after fermentation and ripening can be used, and compound fertilizer can also be used

3. Reasonable watering: water reasonably during the growth period, keep the basin soil moist, and spray water regularly in hot summer

4. Supplement sunlight: Phyllostachys pubescens is more shade resistant and can not withstand the irradiation of strong light, but it can not lack sunlight. It needs to supplement enough astigmatism