Grodan Improved Stone Wool Delta Starter Mini-Blocks - 2 inch x 2 inch x 1.5 inch Case type-nursery-pot making pH adjustment simple and

making pH adjustment simple and effective

For maximum “Gravity effect” use with Sonic Bloom and Killer Tea

or pH unstable media—such as rockwool and gravel products—are used

some growers require find supplementation helpful in demanding conditions

Does not contain carbohydrates or molasses

Grodan Improved Stone Wool Delta Starter Mini-Blocks - 2 inch x 2 inch x 1.5 inch Case type-nursery-pot making pH adjustment simple andGrodan Improved Stone Wool Delta Starter Mini Blocks 2 inch x 2 inch x 1. 5 inch Grodan Improved Stone Wool Delta Starter Mini Blocks are the perfect solution for gardeners looking for a superior alternative to traditional starter cubes. These 2" x 2" x 1. 5" blocks are designed to deliver perfect drainage, uniform and high quality plant starts, increased initial root mass, and reduced transplant shock. Each block boasts a virtually identical density,