2. Insufficient water and fertilizer: Although the single fruit of hawthorn is relatively small in volume and weight, the amount is very large. At the peak of the full fruit season, a tree can produce 65,438+000 kilograms of fruits, which need a lot of nutrients. If it is in a state of drought or malnutrition for a long time, this plant will naturally not bear fruit.
3. Soil discomfort: Hawthorn is not picky about soil. Under normal circumstances, it can survive in ordinary garden soil, but if it wants to blossom and bear fruit, it is necessary to ensure that the soil is not salinized, hardened or hardened seriously. The soil should be soft, fertile, porous and breathable, and the whole soil should be acidic.
4. Spread of pests and diseases: Hawthorn only blooms but does not bear fruit, which is directly related to its improper and incomplete cleaning work in winter. If the diseased branches, dead branches and dead leaves on the tree crown are not removed in time in winter, and the garden is not sprayed with pesticides to kill insects, a large number of diseases and insect pests will lead to plants falling flowers and bearing no fruit.
Maintenance of wild hawthorn bonsai;
When the wild hawthorn bonsai is maintained, it needs pruning and shaping during dormancy, such as cutting off weak branches, too dense branches and long branches that disturb the tree shape, retaining thick middle and short branches, retracting the long branches that extend outward to make the back branches thick, and paying attention to retracting the crown.
Before planting wild hawthorn, it should be pruned according to the tree shape and the main roots should be cut off. For stumps with long excavation time and serious water loss, soak them in clear water for a period of time to replenish water. First plant in the sand to "keep the blank", plant deeper, don't expose the roots, water the plants after planting, often spray water on the plants, or cover them with plastic bags to keep them moist.