Reason: Iris flowering must ensure good sunshine, if the lack of light, photosynthesis is difficult to synthesize nutrients, naturally can not be supplied to flowering.This is a common reason why irises do not bloom, and this factor is crucial.
Solution: To encourage the iris to produce beautiful flowers, give it plenty of light, and keep it in the sun for 6-8 hours a day before blooming, but don't see strong light.
Reason: Iris like to grow in alkaline soil, if the soil provided is not suitable, or used acid soil, these soil are not suitable for growth, will directly affect the flowering.
Solution: It likes good permeability, good drainage of fertile soil, if the soil itself does not meet the growth needs, you can replace the appropriate soil.
Reason: Improper fertilization, lack of fertilizer will lead to lack of nutrients in the plant, too much nitrogen fertilizer will also cause iris flowering difficulties.
Solution: its growth and flowering should pay attention to the rational fertilization, in the flowering period before the application of phosphorus and potassium, reduce the application of nitrogen fertilizer.
Cause: Infections can also affect normal flowering and hinder plant growth.
solution: usually pay attention to good prevention, morbidity after timely removal of diseased branches and leaves, spray to be treated.
