Gardenias need an acidic growing medium and steady moisture, with enough drainage to keep their fine roots healthy. A bright sheltered position is a useful starting point, but watering still needs to follow the pot's condition.
First, the basin
Gardenia likes acidic soil, suitable pH of 5 to 6, preparing suitable soil before planting.If the soil is not suitable, it is very troublesome.
Cultivation soil usually chooses humus soil, peat soil plus half of the garden, do not use coal slag, or purchase a special soil for gardenia, convenient.
Third, watering
Gardenia likes wet environment.From the growth period of 4 ~ September, keep the pot soil, watering, seeing the wet, and spray the blade in the evening to maintain humidity.If the plant grows over, don't water in the evening, and water is watered in the morning.
When watering, the tap water is placed after watering.3 to 5 days, poured a little aqueous solution of citrates, can protect the leaves.
Related reading: Gardenia Varieties: Comparing Leaves, Flowers and Habit.