Grodan Stonewool Delta Gro-Blocks & Big Mama Options:Grodan Delta 6.5 - 4 in Block 4 in x 4 in x 2.5 in w/ Hole (36/Cs) 20-10-20 is fast acting in

20-10-20 is fast acting in foliar sprays or liquid fertilizer injector systems

A unique and powerful hand and tool cleaning soap

The 125 Watt and 200 Watt lamps require a mogul socket

Roots Organics Terp Tea Bloom delivers critical nutrition for heavy-feeding

Select two containers of equal volume based on the size batch being used

Grodan Stonewool Delta Gro-Blocks & Big Mama Options:Grodan Delta 6.5 - 4 in Block 4 in x 4 in x 2.5 in w/ Hole (36/Cs) 20-10-20 is fast acting inGro Blocks are similar to a plant container. Need a 3 in pot? Then choose a 3 in Gro Block. Small plants can be fully grown in our larger Gro Blocks. Holes are perfect size for any 1. 5 in starter plug. Come in packs labeled with instructions. Big Mama is Grodan's largest block ever produced! Big enough to grow a large plant for its entire life. More than twice the amount of wool as our Hugo Block.