Specs
- Polymer coated aluminum sulfate
- 3 to 4 month formula
- Not fertilizer; there are no nutrients in it, just aluminum sulfate
- 50 lb bag
Product Features
- Keeps blue hydrangeas blue
- Turns pink and white hydrangeas blue
- Will also lower pH
Application Rates
Incorporation rates go from 8 to 12 lbs. per cubic yard. Top dress rates vary- see label for details.
Customer Reviews for Florikan® Sapphire 3-4 month Time Release Aluminum Sulfate, 50 lb Bag
No Reviews
Very popular! Polymer-coated aluminum sulfate is slow-release for better uptake by plants, and lowers pH for blue hydrangeas and wonderful azaleas and rhododendrons!
This Florikote Sapphire formula has been carefully engineered for maximum plant benefit. It is designed to increase the development of the blue flower color in blue hydrangeas. Sapphire uses a proprietary controlled release polymer-coated Aluminum Sulfate. Lowers pH as it increases acidity. Once you try it, your plants will want no other aluminum sulfate! 50 lb bag. 
