Grodan Stonewool Delta Gro-Blocks & Big Mama dupe It works well with either

It works well with either hydro

• Sealed

Polyglyceryl Oleate

Put the dry powdered product mixed with water or compost tea into each hole

The exceptional physical properties of this perlite make it tops in the perlite world for adding porosity to soil and soilless mixes

Grodan Stonewool Delta Gro-Blocks & Big Mama dupe It works well with eitherGro 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.