Grodan PRO Delta 10 - 4 in Large Unwrapped (24/Case)
Gro-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.