Gro-Slabs are for the second or third stage of a plant’s life. Slabs are available in a variety of sizes and come with instructions on the wrapping.
These slabs come in clearly marked biodegradable UV resistant poly sleeves. The poly sleeves have several functions;
Comfort in handling.
Preventing algae growth.
Preventing roots and diseases from moving easily from slab to slab.
Enabling full saturation of the slabs before use.
Controlling/directing the water-run off from the slabs