E Z-gro 21-7-7 is a Fertilizer Specially Made for Hydrangeas EZ-gro Hydrangea Blue is a unique combination of high quality nutrients and aluminum sulfate. It is formulated to produce lush foliage and to enhance the hydrangea blue color you desire in many of the pink and blue hydrangea varieties. It will not alter the color of white hydrangeas.

FERTILIZER OF CHOICE - for acid loving plants and with our bluing formula will produce beautiful blue blossoms

VERY EFFECTIVE - in reducing the soil pH, which keeps iron and other trace minerals available to your acid loving plants such as Hydrangeas, Rhododendrons, Azaleas, Gardenias and Orchids

ENHANCED MICRONUTRIENT PACKAGE - EZ-gro 21-7-7 Hydrangea fertilizer is blended with a Micronutrient Package which delivers the optimal nutrition for large beautiful blossoms

FREE MEASURING CUP - Included for precise and accurate application of our Professional 21-7-7 Hydrangea Fertilizer

How to Use: It is best to apply EZ-gro Hydrangea Blue in the early morning or late afternoon. Do not apply in the heat of the day. Do not apply directly to foliage, as damage may occur. At planting apply at a feed rate of 2-1/2 oz (74 ml) every 2 weeks for the first month. After that, feed once per month at the same rate. You may also supplement feed in between regular feedings with EZ-gro 20-20-20 at 4 oz (118ml) as a root drench. Serving Growers for over 40 Years.