Jack's Classic Hydrangea Blue 7-3-3, 1.5 lb.

J R PETERS

Enhances blue flowers like lacecap including: blue bird, taube, fasan, mariesii. Mophead varieties: nikko blue, all summer beauty, matilda gutges, merritt's supreme. It will not change the color of white hydrangea varieties

Hydrangea Blue 7-3-3 is a unique combination of high quality nutrients and aluminum sulfate designed to produce lush leaves and enhance and maintain blue color in many pink and blue varieties of hydrangeas. If the hydrangea is planted next to a concrete foundation or in high alkalinity soil, it will be especially beneficial. It will not change the color of white hydrangea varieties.

MFG Part Number: 59324

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DN
03/18/2023
Donald N.
United States United States

Dark blue-ish purple blooms for me

I have been using this product for about 5 or 6 years. Color ranges from dark blue to dark blue-ish purple mop heads; the mop heads are very large. Also, I fertilize the plants in February with a mixture of organic Nitrogen 4%, Phosphate 3%, Soluble Potash 4%, Calcium 5%, Magnesium 1%, and Sulfur 5%. With a product called Holly-tone (sold on this website) which I also use to fertilize Rhododendrons during my winter months