Gro-Blocks™ are similar to a ‘plant container’. Need a 3” pot? Then choose a 3” Gro-Block. Small plants can be fully grown in our larger Gro-Blocks. Holes are perfect size for any 1.5” starter plug. The bases of the Gro-Blocks are grooved to promote drainage in order to avoid "wet feet". Comes in strips labeled with instructions.

Delta 4 3 inch = 384 per case Delta 5 4 inch = 216 per case Hugo Cubes 6 inch = 48 per case Big Mama 8 inch = 18 per case