Grodan Improved Stone Wool Delta Starter Mini-Blocks - 2 inch x 2 inch x 1.5 inch Case heat mat Dose at a rate according

Dose at a rate according to desired solution strength

The silica strengthens epidermal cell walls in stalks

Snow Storm Ultra

These units also have low temperature defrosting and an easy-to-use LED display panel

Grodan Improved Stone Wool Delta Starter Mini-Blocks - 2 inch x 2 inch x 1.5 inch Case heat mat Dose at a rate accordingGrodan 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,