Grodan PRO Delta 4 - 3 in Small Unwrapped Humidity Control Easily installs in minutes

Easily installs in minutes

professionally formulated

cuff and ankle with elastic

Mother Earth® Coco + Perlite creates the perfect growing environment

Spectralux

Grodan PRO Delta 4 - 3 in Small Unwrapped Humidity Control Easily installs in minutesGro 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.