Growing Media

A step up from basic coconut coir for all your hydroponic growing. Use Ultra Coir alone or as an amendment to add texture to your soil. Ultra coir will hold and release moisture just when plants need it most. The formula is myco-active; we use only...

Get in the mix with Sunshine's organic media. You can rely on this long-tested product to grow your best garden, as it's been developed through university research using professional quality ingredients. You'll find this popular peat-lite formula with...

Sunshine #4 Natural & Organic is recommended where high air capacity and fast drainage are needed: during winter months, with water or salt sensitive crops, or where frequent leaching is required.

Sunshine Mix #4 with Mycorrhizae is an ideal choice for both indoor and outdoor gardening. This high drainage mix is known for its consistent performance. Formulated with Canadian Sphagnum Peat Moss for increased moisture retention, optimum air exchange...

This quality SunGro product is recommended where high air capacity and fast drainage are needed: during winter months, with water and salt sensitive crops, or where frequent leaching is required. Ingredients:Canadian Sphagnum peat mossCoarse...

This OMRI Listed low salt organic material is just what the name implies, "Just Coir", actually coconut coir pith. We take the highest quality coir available, rinse it to reduce salts and then reconstitute it from an awkward difficult to use compressed...

This rich, loamy mix is one of the best for all gardening applications. Our 100% organic base consists of screened earthworm castings and Canadian sphagnum peat moss. Includes compost and forest humus. Perlite and pumice are added to ensure optimum...

This rich, loamy mix is one of the best for all gardening applications. Our 100% organic base consists of screened earthworm castings and Canadian sphagnum peat moss. Includes compost and forest humus. Perlite and pumice are added to ensure optimum...

Formulated with earth-friendly ingredients to retain moisture, provide improved root aeration and drainage, and develop strong, healthy root systems for maximum stem, flower and foliage growth. Peat moss and coconut fiber retain water and nutrients for...

BIG ROOTZBig Rootz® is carefully formulated to meet the needs of professional growers, yet it’s so easy to use that even novice gardeners can achieve growing success. Use it for indoor grows or outdoor greenhouses, or add it to existing soil. Big Rootz®...

BIG ROOTZBig Rootz® is carefully formulated to meet the needs of professional growers, yet it’s so easy to use that even novice gardeners can achieve growing success. Use it for indoor grows or outdoor greenhouses, or add it to existing soil. Big Rootz®...

Soil King Baby Rootz 1.5 cu. ft. – SKBABY15 Baby Rootz Seed Starting Mix was tested for 2 years, indoors, outdoors, and in greenhouses, to prove performance. Baby Rootz has half the nutrition pack of its big brother, Big Rootz, while still...

Granulated rockwool can be used alone or as an amendment to organic based mixes. For example, the addition of water absorbant granulate to peat mixes at 25-50% volume increases water holding capacity and aeration, improving plant growth and shelf life...

Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from one batch of wool, Grodan is unique by making different...

Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from one batch of wool, Grodan is unique by making different...

Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from one batch of wool, Grodan is unique by making different...

Note: This bulk item is shipped as a full pallet without boxes or retail labeling.Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand...

Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from one batch of wool, Grodan is unique by making different...

Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from one batch of wool, Grodan is unique by making different...

Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from one batch of wool, Grodan is unique by making different...

Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from one batch of wool, Grodan is unique by making different...

Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from one batch of wool, Grodan is unique by making different...

Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from one batch of wool, Grodan is unique by making different...

Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from one batch of wool, Grodan is unique by making different...

The renewed plugs result in a maximum number of useable and homogeneous seedlings. Both form and strength have been greatly improved for good machine and manual processing. Whether sowing or transplanting, the new plug is the solution to achieving a...

These rockwool plugs feature a slit for easy insertion of rooted cuttings. They fit perfectly into the hole of any standard rockwool block or any other type of growing medium.

Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from one batch of wool, Grodan is unique by making different...

This loose fill, non-bagged product consists of small stonewool croutons about the size of a fingernail. When you use this potting mix the miniature cubes stack on top of each other and air pockets are created throughout the pot. Growcubes are difficult...

Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from one batch of wool, Grodan is unique by making different...

Grodan ImprovedGro Block Improved Mini Block 2" Shrink wrapped/StripGrodan partnered with the Wageningen University and Research facility in The Netherlands and top growers throughout North America to identify the optimal stone wool substrate and...

Grodan ImprovedGro Block Improved Mini Block 1.5" StripGrodan partnered with the Wageningen University and Research facility in The Netherlands and top growers throughout North America to identify the optimal stone wool substrate and irrigation...

Grodan ImprovedGro Block Improved Mini Block 1.5" Shrink wrapped/StripGrodan partnered with the Wageningen University and Research facility in The Netherlands and top growers throughout North America to identify the optimal stone wool substrate and...

Grodan ImprovedUniblock GR40, 8" x 8" x 4"Grodan partnered with the Wageningen University and Research facility in The Netherlands and top growers throughout North America to identify the optimal stone wool substrate and irrigation strategies for...

Grodan ImprovedGro Block Improved GR4 Small 3" w/Hole 3" x 3" x 2.6" StripGrodan partnered with the Wageningen University and Research facility in The Netherlands and top growers throughout North America to identify the optimal stone wool substrate and...

Grodan ImprovedGro Block Improved GR10 Large 4" w/Hole 4" x 4" x 4" StripGrodan partnered with the Wageningen University and Research facility in The Netherlands and top growers throughout North America to identify the optimal stone wool substrate and...

Grodan ImprovedGro Block Improved GR7.5 Medium 4" w/Hole 4" x 4" x 3.1" Shrink wrapped/StripGrodan partnered with the Wageningen University and Research facility in The Netherlands and top growers throughout North America to identify the optimal stone...

Grodan ImprovedGro Block Improved GR5.6 Large 3" w/Hole 3" x 3" x 4" Shrink wrapped/StripGrodan partnered with the Wageningen University and Research facility in The Netherlands and top growers throughout North America to identify the optimal stone wool...

Grodan ImprovedGro Block Improved GR4 Small 3" No Hole 3" x 3" x 2.6" StripGrodan partnered with the Wageningen University and Research facility in The Netherlands and top growers throughout North America to identify the optimal stone wool substrate and...

Grodan ImprovedGro Block Improved GR4 Small 3" w/Hole 3" x 3" x 2.6" Shrink wrapped/StripGrodan partnered with the Wageningen University and Research facility in The Netherlands and top growers throughout North America to identify the optimal stone wool...

Grodan Improved Hugo (White Foil) 6” x 6” x 5.8” (512 blocks – Loose on Pallet) Grodan ImprovedGrodan partnered with the Wageningen University and Research facility in The Netherlands and top growers throughout North America to identify the optimal...

Grodan Improved Jumbo (White Foil) 6” x 6” x 4” (Case of 64) Grodan ImprovedGrodan partnered with the Wageningen University and Research facility in The Netherlands and top growers throughout North America to identify the optimal stone wool substrate...

Grodan ImprovedGro Block Improved GR10 Large 4" w/Hole 4" x 4" x 4" Shrink wrapped/StripGrodan partnered with the Wageningen University and Research facility in The Netherlands and top growers throughout North America to identify the optimal stone wool...

Grodan ImprovedGro Block Improved GR6.5 Small 4" w/Hole, 4" x 4" x 2.6" Shrink wrapped/StripGrodan partnered with the Wageningen University and Research facility in The Netherlands and top growers throughout North America to identify the optimal stone...

Grodan ImprovedGro Block Improved GR6.5 Small 4" w/Hole, 4" x 4" x 2.6" StripGrodan partnered with the Wageningen University and Research facility in The Netherlands and top growers throughout North America to identify the optimal stone wool substrate...

Grodan Improved Hugo (White Foil) 6” x 6” x 5.8” (Case of 64) Grodan ImprovedGrodan partnered with the Wageningen University and Research facility in The Netherlands and top growers throughout North America to identify the optimal stone wool substrate...

Grodan Improved GR10 (White Foil) 4” x 4” x 4” (1584 blocks – Loose on Pallet) Grodan ImprovedGrodan partnered with the Wageningen University and Research facility in The Netherlands and top growers throughout North America to identify the optimal stone...

Pargro stonewool blocks are available in a number of sizes to suit all types of plants. All blocks with holes fit 1.5” starter plugs.Pargro is Grodan’s generic value product line, saving you money while providing you the same quality clean, hygienic, and...

Pargro is the leader among affordable horticultural rockwool. Made right in the Grodan factory, you can be assured of a high-quality product at a great price. Drainage Driest value-priced rockwool on the market 14% drier than competitor blocks...

Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from one batch of wool, Grodan is unique by making different...

Pargro stonewool blocks are available in a number of sizes to suit all types of plants. Measuring 6 in x 6 in x  4 in, the Jumbo is a particularly good choice of block size for an ebb and flow system because it is 2 in shorter than the Biggie. All...