During the growth of asparagus, due to exposure to sunlight or excessive watering, there will be yellow leaves and dead leaves. These dead leaves and yellow leaves should be cut off in time. If there are serious problems, all branches should be cut off and let them grow again. Some dead branches that appear during the growth process should also be pruned. The yellow leaves of asparagus are root rot caused by excessive watering, and the root system needs pruning at this time. But before pruning the roots, you need to judge first. If yellow leaves will grow behind after the first wave of yellow leaves are cut off, then cut off the rotten roots and give them to asparagus.

2. Temperature

A large part of the reason for the yellowing of asparagus leaves is temperature, because high temperature, high humidity and exposure in summer easily lead to root rot and leaf burns of asparagus; However, if the temperature is too low in winter, it will easily lead to physiological yellow leaves of asparagus and even frostbite.

Asparagus is a plant that is afraid of strong light, especially in late spring and early summer. When the temperature is high, the sunshine temperature is also very high. Therefore, when planting asparagus at this time, it must be placed in a cool place. As long as the light is bright or astigmatic, and then some water is sprayed around the plant, it can cool down. Therefore, asparagus should be properly shaded in summer and kept warm in winter. This method is suitable for all foliage plants.

Step 3 apply fertilizer

Asparagus needs a lot of nutrition if it wants to grow into a small forest, otherwise it will be difficult for new buds to germinate due to insufficient nutrition. In addition, asparagus itself likes fertilizer, but it doesn't like thick fertilizer, and the number of fertilization should not be too much, otherwise the root system can't absorb it, which will lead to the root scald of asparagus.