Vigoro Spreader & Ironite Compatibility: What You Need to Know

No, the Vigoro spreader is not compatible with Ironite. The Vigoro spreader is designed for granular fertilizers, while Ironite is a water-soluble fertilizer. Using Ironite in the Vigoro spreader can cause clumping and uneven application.

To apply Ironite, you will need to dissolve it in water and spray it onto your lawn or garden. The recommended rate of application for Ironite is 1 pound per 1,000 square feet. You should apply Ironite every two to three months during the growing season.