How do bonsai spend the summer?
Summer high temperature, waterlogging are disasters for bonsai, drought and shade are not suitable, protective measures must be taken.
Drought: the stump is planted in the basin, whether it is a deep basin or a shallow basin, the soil is always limited, and the water content is also limited. When I think of watering, I can't remember not watering, sometimes I don't care for several days in a row, once I find the leaf wilting, I quickly replenish the water, and the leaf surface returns to normal, which is a reaction of the pile to adapt to the environment, but for a long time, too strong transpiration will eventually make it difficult for the pile to become dehydrated and die.
Water stains: mistakenly think that frequent watering during the high temperature period is beneficial to the growth of the pile, but several times a day, the humidity of the basin soil is too high, the root system is in a state of anaerobic respiration for a long time, produces excessive alcohol accumulation, and the root system of the pile fails to absorb water, inorganic salts and minerals. Finally drowned. Generally speaking, in summer or drought, it is best to water it in the morning and evening.
Sunburn: when the ambient temperature exceeds 28 ℃, the bonsai should be protected by shade, otherwise, the amount of water obtained by the pile from the soil is much lower than the water lost by transpiration, the light leaf edge burns, scorched, the heavy pile is burned, badly injured and died.
Sudden shade: usually, some tree species like shade, so shade measures should be taken. For example, most cuckoos and camellias like shade, in order to avoid high temperature injury, when the ambient temperature exceeds the maximum temperature limit of the pile, the bonsai should be moved to the low temperature zone with weak light, about 2 ℃ lower, to facilitate the growth of the pile, but if it is suddenly moved to the indoor or lower temperature area, within a few days, the leaves will naturally fall off, and the stump will shrink and die.
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