Harry’s Gardenia Food – 1kg & 5kg Harry’s Gardenia Food is the ideal feed to keep your plants healthy all year round. Providing a healthy mix of both slow and fast-acting nutrients which will reach the plant’s roots and provide nutrients when the plants need it most. Apply once in September, December and March for optimum results. Apply two teaspoons of fertiliser to established plants in garden beds, for potted plants apply the recommended amount of feed as to the label. Sprinkle fertiliser around the base of the plant and water it in deeply. A great fertiliser which encourages strong healthy growth and abundance of flowers.