Five taboos to avoid in summer growth and care of bonsai

1. Avoid fertilizing.

In the high heat of midsummer, leaves lose water relatively quickly. Fertilizing at this time can make the solute concentration in the trunk cells lower than that of the external environment, causing water in the plant cells to flow back into the soil, and the trunk dies from water loss due to fertilizer damage.

2. Avoid drought.

If you remember to water, you water; if you do not remember, you do not water. Sometimes you leave it unattended for several days in a row. Only when the leaves are found to be wilted do you quickly replenish water, and then the leaves return to normal. This is a response of the trunk to adapt to the environment, but if this happens over the long term, the excessive transpiration will eventually make the trunk unable to recover from serious "illness," and it will die from dehydration.

3. Avoid waterlogging.

When the ambient temperature exceeds 28 degrees, the bonsai should be protected with shade. Otherwise, the amount of water the trunk obtains from the soil is far lower than the amount of water lost through transpiration. In mild cases, the leaf edges are scorched and withered; in severe cases, the trunk is severely damaged by sunscald and dies.

4. Avoid sudden shading.

Usually, to avoid high-temperature damage, when the ambient temperature exceeds the maximum temperature the trunk can tolerate, the bonsai should be moved to a relatively low-temperature area with weaker light (about 2 degrees lower) to facilitate the growth of the trunk. However, if it is suddenly moved indoors or to a low-temperature area without light, the leaves will naturally fall off within a few days, and the trunk will also rapidly shrink and die.

5. Avoid midday watering.

At noon in the hot summer, do not spray water on the trunk in the light or pour water into the pot. This kind of "pampering" will cause the bonsai temperature to suddenly drop below the ambient temperature and damage the trunk.

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