We are sorry to hear about your experience with Miracle-Gro Shake N Feed Palm Food. Plant food response depends heavily on temperature and moisture. Plants will not respond if it is too cold or the soil is dry. Plants should be watered every 2 to 4 days depending on weather conditions. If the plants are under stress they will not show sign of improvement from fertilizer. We want you to be confident in our products. For this reason, we offer a product guarantee to our consumers. At your earliest convenience, please call 877-220-3089.