Sometimes nutrient deficiencies occur as a result of over or underwatering the plant. We recommend watering the plant well each time you water, but only water often enough to keep the soil evenly moist, keeping in mind that the needs of the plant will fluctuate with change in the weather, and growth. The larger the plant grows, the more water will be required. If you applied a granular slow release fertilizer already it should be worked into the soil and then watered well. You may see the leaves become green again, but not always; but you should not see any further signs of deficiency. If you’ve applied a different type of fertilizer, don’t apply anymore of any kind until necessary. You can determine how often to fertilize by following the fertilizer label directions.