Reasons Why Gardenia Buds Turn Black and How to Fix It

Gardeners who have grown gardenias have probably encountered gardenia bud drop. There are many reasons for gardenia bud drop, and gardeners need to judge the situation of their gardenia based on their own actual conditions.

Humidity

Low air humidity (low humidity does not mean watering more; you can increase humidity by misting, ideally reaching 70% air humidity). Soil that is too wet causes root rot (too much watering).

Air

Keep the air circulating and fresh to prevent bud drop and leaf drop (if kept indoors for a long time without sunlight for too long, buds will wither and drop).

Cold wind

It must not be exposed to cold wind, otherwise bud development will be interrupted.

Acidity

The potting soil must always remain on the acidic side, otherwise it will easily show physiological yellowing.

Fertilizing

A lack of phosphorus and potassium fertilizer can also cause failure to bloom or withering and dropping of flower buds.