Dissolve in water before use. Apply by watering can.
Flower gardens: Mix 15 ml per 4 L of water (1 tbsp / 1 gal) and soak soil with the mixture. Apply as soon as transplants / seedlings are established. Repeat every 2 – 4 weeks during blooming.
Flowering houseplants: Mix 5 ml per 4 L of water (1 tsp / 1 gal) and soak soil with the mixture. Repeat every 4 weeks during blooming.