Showy evergreen shrub with glossy dark green foliage, bearing beautiful fragrant flowers during spring and summer. Makes an ideal garden shrub or pot specimen and does well in a sunny or part shaded spot. Ideally they are suited to morning sun followed by dappled afternoon shade. Gardenias are acid loving, preferring a rich well drained position and respond well to a light prune after flowering, this will encourage new growth.
Q. Why are some of the leaves on my gardenia yellow at this time of the year? (Late winter/ early spring)
A. The old leaves on gardenias will turn yellow as the season changes from winter to spring. You will be rewarded by applying an application of Miracle-Gro for Azalea and Camellias. This will promote strong, healthy growth and produce an abundance of blooms in spring. If new growth is yellow this can be corrected with applications of magnesium sulphate or chelated iron.
Q. My gardenias have sooty mould on their leaves, what is the problem?
A. Sooty mould on the leaves is a sign that scale has attacked the plant, spray with antiscale or apply 3 applications of pest oil at 10-14 day intervals.
Q. Why are the buds of my gardenia not opening and often just fall off, any blooms that do appear have petals with a brown edge?
A. This is the sign that thrips are attacking the buds. Thrips are a tiny sucking insect barely visible to the naked eye, feeding off the buds and spoiling the blooms. Spray with malathon and repeat in 7-10 days if infestation is bad.