Why don't longevity flowers bloom?

Reason: There are many possible reasons for plant overgrowth. One is that pruning is not timely, and coring and topping are not carried out. The other is that there is too much nitrogen fertilizer and not enough phosphorus and potassium fertilizer.

Solution: The distance between overgrown plant leaves is usually long. This situation requires extensive pruning, and all the overgrown branches and leaves are cut off. Usually, the top third is not used. At the same time, when it grows again, we should pay attention to pinching and topping.

Second, the illumination time is too long.

Reason: Longevity flowers have strict requirements on illumination time, which is generally kept at 8 hours. Insufficient light will lead to the growth of longevity flowers, and too much light will affect the formation of flower buds.

Solution: let the longevity flower be exposed to the sun for 8 hours, and then put it in a semi-shade. It should be noted that it is not suitable to illuminate when the light is strong at noon, so generally 4 hours in the morning and 4 hours in the evening are enough.

Third, insufficient nutrition.

Reason: Insufficient fertilization is mainly due to the lack of phosphate fertilizer and potash fertilizer which are beneficial to flowering and improving resistance of plants.

Solution: In addition to liquid fertilizer once every two weeks, potassium dihydrogen phosphate should be applied twice as much as1-0 after flower buds are formed in June 5438+065438+ 10. This will promote flowering, make flowers bright and colorful, and also have the effect of prolonging flowering period.

Fourth, the soil quality is poor.

Reason: Long-term watering and fertilization of basin soil can easily lead to hardening. After hardening, water and fertilizer can not reach the roots, and it is easy to breed diseases.

Solution: change the pot of longevity flowers every year and loosen the soil regularly. Ensure that the soil is loose and cut off the rotten roots when changing pots.