The causes and solutions of gardenia leaf dry edge are as follows:
The first is that the dry edge of Gardenia jasminoides leaves is caused by iron deficiency. At this time, just spray appropriate amount of ferrous sulfate solution to prevent and control it;
The second kind: magnesium deficiency causes chlorosis, leading to dry edges of gardenia flowers and leaves. At this time, just spray appropriate amount of boron and magnesium fertilizer to prevent and control it;
Third, nitrogen deficiency leads to dry edges of gardenia flowers and leaves. At this time, only appropriate nitrogen fertilizer can be applied;
Fourth, excessive exposure leads to dry edges of gardenia leaves. At this time, just give gardenia scattered light or half shade environment;
Fifth, water shortage leads to dry edges of gardenia flowers and leaves. At this time, just pour proper amount of water.