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Grodan Gro-Smart Tray Insert (5/Cs) Grodan Gro-Smart Tray Insert (5/Cs)

Your Grodan® Starter plugs, Mini-Blocks and Gro-Blocks have finally found a home. This durable Dutch tray has double-sided features. Use the 78-cell side to perfectly fit 1.5 in A-OK Starter Plugs or round Macroplugs. Use the mesh side for sheets of A-OK's, Mini-Blocks, or Gro-Blocks. The tray fits in a standard 10 x 20 flat and keeps the Grodan® elevated from the bottom of the flat. Easily sanitize as any hard-plastic product; even dish-washer safe! This terra-cotta colored tray was designed by Grodan® and is exclusively manufactured for the Grodan company.

MSRP $14.12
Grodan Gro-Wool Absorbent Granulate Grodan Gro-Wool Absorbent Granulate

Granulated rockwool works great on its own or mixed with other loose media, such as expanded clay rocks or coconut fiber. If planting in containers outdoors, water absorbent granulate is the best medium of choice.

MSRP $82.52
Grodan Pargro QD 6 in x 36 in Slab (12/Cs) Grodan Pargro QD 6 in x 36 in Slab (12/Cs)

Same quality, same value-priced, half-sized cases. Driest value-priced rockwool on the market. Made at the Grodan® factories. Plain brown half-case sizes. Better quality and drainage than other value-priced rockwool.

MSRP $84.66
Grodan Uni-Slab 9.5 in x 8 in x 4 in (16/Cs) Grodan Uni-Slab 9.5 in x 8 in x 4 in (16/Cs)

Gro-Slabs provide the final stage for growing a spectacularly large plant. Transplant your Gro-Block plant onto a slab just like professional growers. They come in clearly marked biodegradable UV-resistant sleeves for comfortable handling and algae prevention. With the Uni-Slab, all plant roots are protected and contained for the life of the plant. Due to its size, the Uni-Slab is perfect for one large plant. Uni-Slab has the benefits of a slab with the versatility of a block. All Gro-Slabs have vertical fibers except the 12 in Gro-Slab, which has horizontal fibers.

MSRP $96.27
Grodan Pargro QD Jumbo Block 6 in x 6 in x 4 in w/ Hole (36/Cs) Grodan Pargro QD Jumbo Block 6 in x 6 in x 4 in w/ Hole (36/Cs)

Same quality, same value-priced, half-sized cases. Driest value-priced rockwool on the market. Made at the Grodan® factories. Plain brown half-case sizes. Better quality and drainage than other value-priced rockwool.

MSRP $98.30
Grodan Expert Slab 15/75 6 in x 3 in x 36 in (12/Cs) Grodan Expert Slab 15/75 6 in x 3 in x 36 in (12/Cs)

Gro-Slabs provide the final stage for growing a spectacularly large plant. Transplant your Gro-Block plant onto a slab just like professional growers. They come in clearly marked biodegradable UV-resistant sleeves for comfortable handling and algae prevention. With the Uni-Slab, all plant roots are protected and contained for the life of the plant. Due to its size, the Uni-Slab is perfect for one large plant. Uni-Slab has the benefits of a slab with the versatility of a block. All Gro-Slabs have vertical fibers except the 12 in Gro-Slab, which has horizontal fibers.

MSRP $100.14
Grodan Pargro QD 4 in x 4 in Block (72) w/ Hole (12/Cs) Grodan Pargro QD 4 in x 4 in Block (72) w/ Hole (12/Cs)

Same quality, same value-priced, half-sized cases. Driest value-priced rockwool on the market. Made at the Grodan® factories. Plain brown half-case sizes. Better quality and drainage than other value-priced rockwool.

MSRP $103.28
Grodan Grow-Cubes Bulk Loose Box Grodan Grow-Cubes Bulk Loose Box

Grow-Cubes are small loose 1/2 in cubes of stonewool. Advantages are better aeration, maximum drainage so that you can hardly ever overwater your plant, easy mixing with other loose media (such as expanded clay rocks or coconut fiber), lightweight and much cleaner than peat-based media. The properties of Grow-Cubes make it like a 50/50 mix of absorbent to repellent stonewool.

MSRP $108.98
Grodan Expert Slab 20/75 8 in x 3 in x 36 in (12/Cs) Grodan Expert Slab 20/75 8 in x 3 in x 36 in (12/Cs)

Gro-Slabs provide the final stage for growing a spectacularly large plant. Transplant your Gro-Block plant onto a slab just like professional growers. They come in clearly marked biodegradable UV-resistant sleeves for comfortable handling and algae prevention. With the Uni-Slab, all plant roots are protected and contained for the life of the plant. Due to its size, the Uni-Slab is perfect for one large plant. Uni-Slab has the benefits of a slab with the versatility of a block. All Gro-Slabs have vertical fibers except the 12 in Gro-Slab, which has horizontal fibers.

MSRP $129.56
Grodan Classic Slab 30/75 12 in x 3 in x 36 in (8/Cs) Grodan Classic Slab 30/75 12 in x 3 in x 36 in (8/Cs)

Gro-Slabs provide the final stage for growing a spectacularly large plant. Transplant your Gro-Block plant onto a slab just like professional growers. They come in clearly marked biodegradable UV-resistant sleeves for comfortable handling and algae prevention. With the Uni-Slab, all plant roots are protected and contained for the life of the plant. Due to its size, the Uni-Slab is perfect for one large plant. Uni-Slab has the benefits of a slab with the versatility of a block. All Gro-Slabs have vertical fibers except the 12 in Gro-Slab, which has horizontal fibers.

MSRP $130.67
Grodan Expert Fat Slabs 15/100 6 in x 4 in x 36 in (12/Cs) Grodan Expert Fat Slabs 15/100 6 in x 4 in x 36 in (12/Cs)

Gro-Slabs provide the final stage for growing a spectacularly large plant. Transplant your Gro-Block plant onto a slab just like professional growers. They come in clearly marked biodegradable UV-resistant sleeves for comfortable handling and algae prevention. With the Uni-Slab, all plant roots are protected and contained for the life of the plant. Due to its size, the Uni-Slab is perfect for one large plant. Uni-Slab has the benefits of a slab with the versatility of a block. All Gro-Slabs have vertical fibers except the 12 in Gro-Slab, which has horizontal fibers.

MSRP $133.50
Grodan Grow-Cubes Large 2 cu ft (3/Cs) Grodan Grow-Cubes Large 2 cu ft (3/Cs)

Grow-Cubes are small loose 1/2 in cubes of stonewool. Advantages are better aeration, maximum drainage so that you can hardly ever overwater your plant, easy mixing with other loose media (such as expanded clay rocks or coconut fiber), lightweight and much cleaner than peat-based media. The properties of Grow-Cubes make it like a 50/50 mix of absorbent to repellent stonewool.

MSRP $134.42
Grodan Stonewool Grow-Chunks 2 cu ft (3/Cs) Grodan Stonewool Grow-Chunks 2 cu ft (3/Cs)

Light, airy and versatile. Grow-Chunks are about 3/4 in square each and can be used in pots, around blocks or alone. They are easily combined with other media, such as layering with coco fiber or clay pellets. They can also be combined with soil for added aeration and increased moisture-holding properties. Great for hydro systems or container gardening.

MSRP $134.42
Grodan Delta Big Mama Block 8 in x 8 in x 8 in (18/Cs) Grodan Delta Big Mama Block 8 in x 8 in x 8 in (18/Cs)

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.

MSRP $150.55
Grodan Cress Plate Propagation Mat 10 in x 20 in (95/Cs) Grodan Cress Plate Propagation Mat 10 in x 20 in (95/Cs)

The ideal growing media for seed starts, microgreens, baby leaf crops and more. Thinnest Grodan® available. 10 x 20 inch mat fits in most propagation trays. Consistent structure results in quick and easy germination. The uniform density allows for equal water levels throughout resulting in even crop growth. Clean alternative to other medias.

MSRP $151.97
Grodan PRO Delta 6.5 - 4 in Small Unwrapped (36/Cs) Grodan PRO Delta 6.5 - 4 in Small Unwrapped (36/Cs)

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.

MSRP $152.28
Grodan PRO Delta 10 - 4 in Large Unwrapped (24/Cs) Grodan PRO Delta 10 - 4 in Large Unwrapped (24/Cs)

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.

MSRP $157.16
Grodan Pargro QD 1.5 in Plug (1372) 1.5 in x 1.5 in x 1.5 in (14/Cs) Grodan Pargro QD 1.5 in Plug (1372) 1.5 in x 1.5 in x 1.5 in (14/Cs)

Same quality, same value-priced, half-sized cases. Driest value-priced rockwool on the market. Made at the Grodan® factories. Plain brown half-case sizes. Better quality and drainage than other value-priced rockwool.

MSRP $165.40
Grodan Grow-Cubes Medium 1 cu ft (6/Cs) Grodan Grow-Cubes Medium 1 cu ft (6/Cs)

Grow-Cubes are small loose 1/2 in cubes of stonewool. Advantages are better aeration, maximum drainage so that you can hardly ever overwater your plant, easy mixing with other loose media (such as expanded clay rocks or coconut fiber), lightweight and much cleaner than peat-based media. The properties of Grow-Cubes make it like a 50/50 mix of absorbent to repellent stonewool.

MSRP $166.34
Grodan Pargro QD Jumbo Block 6 in x 6 in x 4 in w/ Hole (64/Cs) Grodan Pargro QD Jumbo Block 6 in x 6 in x 4 in w/ Hole (64/Cs)

Same quality, same value-priced, half-sized cases. Driest value-priced rockwool on the market. Made at the Grodan® factories. Plain brown half-case sizes. Better quality and drainage than other value-priced rockwool.

MSRP $174.76
Grodan PRO Delta 4 - 3 in Small Unwrapped (48/Cs) Grodan PRO Delta 4 - 3 in Small Unwrapped (48/Cs)

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.

MSRP $196.58
Grodan Pargro QD Biggie Block 6 in x 6 in x 6in w/ Hole (64/Cs) Grodan Pargro QD Biggie Block 6 in x 6 in x 6in w/ Hole (64/Cs)

Same quality, same value-priced, half-sized cases. Driest value-priced rockwool on the market. Made at the Grodan® factories. Plain brown half-case sizes. Better quality and drainage than other value-priced rockwool.

MSRP $213.47
Grodan Pargro QD 1.5 in Block (1170) 1.5 in x 1.5 in x 1.5 in (26/Cs) Grodan Pargro QD 1.5 in Block (1170) 1.5 in x 1.5 in x 1.5 in (26/Cs)

Same quality, same value-priced, half-sized cases. Driest value-priced rockwool on the market. Made at the Grodan® factories. Plain brown half-case sizes. Better quality and drainage than other value-priced rockwool.

MSRP $217.88
Grodan Delta 6.5 - 4 in Block 4 in x 4 in x 2.5 in w/ Hole (36/Cs) Grodan Delta 6.5 - 4 in Block 4 in x 4 in x 2.5 in w/ Hole (36/Cs)

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.

MSRP $222.77
Grodan Delta Hugo 6 in Block 6 in x 6 in x 6 in w/ Hole (64/Cs) (8/Plt) Grodan Delta Hugo 6 in Block 6 in x 6 in x 6 in w/ Hole (64/Cs) (8/Plt)

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.

MSRP $227.71
Grodan Delta 10 - 4 in Block 4 in x 4 in x 4 in w/ Hole (24/Cs) Grodan Delta 10 - 4 in Block 4 in x 4 in x 4 in w/ Hole (24/Cs)

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.

MSRP $235.46
Grodan Delta 8 - 4 in Block 4 in x 4 in x 3 in w/ Hole (30/Cs) Grodan Delta 8 - 4 in Block 4 in x 4 in x 3 in w/ Hole (30/Cs)

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.

MSRP $257.19
Grodan Delta 5.6 - 3 in Block 3 in x 3 in x 4 in w/ Hole (32/Cs) Grodan Delta 5.6 - 3 in Block 3 in x 3 in x 4 in w/ Hole (32/Cs)

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.

MSRP $286.11
Grodan Delta 4 - 3 in Block 3 in x 3 in x 2.5 in No Hole (48/Cs) Grodan Delta 4 - 3 in Block 3 in x 3 in x 2.5 in No Hole (48/Cs)

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.

MSRP $286.18
Grodan Delta 4 Block 3 in x 3 in x 2.5 in w/ Hole (48/Cs) Grodan Delta 4 Block 3 in x 3 in x 2.5 in w/ Hole (48/Cs)

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.

MSRP $286.18
Grodan PRO A-OK Starter Plugs 2 in Unwrapped (30/Cs) Grodan PRO A-OK Starter Plugs 2 in Unwrapped (30/Cs)

A-OK Starter Plugs for starting seeds and rooting of cuttings prior to plugging into the larger Gro-Blocks. A-OK Starter Plugs come labeled with instructions in a shrink-wrapped sheet that fits a standard 10 x 20 tray (flat). Note: Item #713020 is supplied without shrink wrap.

MSRP $311.04
Grodan PRO A-OK Starter Plugs 1.5 in Unwrapped (30/Cs) Grodan PRO A-OK Starter Plugs 1.5 in Unwrapped (30/Cs)

A-OK Starter Plugs for starting seeds and rooting of cuttings prior to plugging into the larger Gro-Blocks. A-OK Starter Plugs come labeled with instructions in a shrink-wrapped sheet that fits a standard 10 x 20 tray (flat). Note: Item #713020 is supplied without shrink wrap.

MSRP $331.14
Grodan MacroPlug Round w/ Slit Bulk (2000/Cs) Grodan MacroPlug Round w/ Slit Bulk (2000/Cs)

MacroPlugs are 1.5 in round with a slit that allows easy insertion of a cutting. These loose round plugs fit perfectly into the Gro-Block hole. For best results, always insert MacroPlugs in a tray with individual cells. The individual cell will make sure the plug stays closed around the stem of your cutting.

MSRP $343.74
Grodan PRO Starter Mini-Blocks 1.5 in Unwrapped (50/Cs) Grodan PRO Starter Mini-Blocks 1.5 in Unwrapped (50/Cs)

Mini-Blocks sit in a tray (flat) without support for easy starting of seeds and cuttings. These Mini-Blocks are individually wrapped in white plastic to minimize algae growth. Remove wrapping and transplant into any loose media such as Grow-Cubes or coconut fiber or leave wrapping on and set on top of a larger Gro-Block. Packed in easy tear-away strips, labeled with instructions.

MSRP $374.97
Grodan A-OK 50/40 2 in x 2 in Plugs (50/Sheet) (30 Sheets/Cs) Grodan A-OK 50/40 2 in x 2 in Plugs (50/Sheet) (30 Sheets/Cs)

A-OK Starter Plugs for starting seeds and rooting of cuttings prior to plugging into the larger Gro-Blocks. A-OK Starter Plugs come labeled with instructions in a shrink-wrapped sheet that fits a standard 10 x 20 tray (flat). Note: Item #713020 is supplied without shrink wrap.

MSRP $381.98
Grodan MacroPlug Round w/ Slit (50/Bag) (35 Bags/Cs) Grodan MacroPlug Round w/ Slit (50/Bag) (35 Bags/Cs)

MacroPlugs are 1.5 in round with a slit that allows easy insertion of a cutting. These loose round plugs fit perfectly into the Gro-Block hole. For best results, always insert MacroPlugs in a tray with individual cells. The individual cell will make sure the plug stays closed around the stem of your cutting.

MSRP $416.48
Grodan 2 in Starter Mini-Blocks MM50/40 2 in x 2 in x 2 in (2 Strips of 12 or 24 ct) (60/Cs) Grodan 2 in Starter Mini-Blocks MM50/40 2 in x 2 in x 2 in (2 Strips of 12 or 24 ct) (60/Cs)

Mini-Blocks sit in a tray (flat) without support for easy starting of seeds and cuttings. These Mini-Blocks are individually wrapped in white plastic to minimize algae growth. Remove wrapping and transplant into any loose media such as Grow-Cubes or coconut fiber or leave wrapping on and set on top of a larger Gro-Block. Packed in easy tear-away strips, labeled with instructions.

MSRP $421.83
Grodan A-OK 36/40 1.5 in x 1.5 in Plugs (98/Sheet) (30 Sheets/Cs) Grodan A-OK 36/40 1.5 in x 1.5 in Plugs (98/Sheet) (30 Sheets/Cs)

A-OK Starter Plugs for starting seeds and rooting of cuttings prior to plugging into the larger Gro-Blocks. A-OK Starter Plugs come labeled with instructions in a shrink-wrapped sheet that fits a standard 10 x 20 tray (flat). Note: Item #713020 is supplied without shrink wrap.

MSRP $441.02
Grodan 1.5 in Starter Mini-Blocks MM40/40 1.5 in x 1.5 in x 1.5 in (3 Strips of 15 or 45 ct) (50/Cs) Grodan 1.5 in Starter Mini-Blocks MM40/40 1.5 in x 1.5 in x 1.5 in (3 Strips of 15 or 45 ct) (50/Cs)

Mini-Blocks sit in a tray (flat) without support for easy starting of seeds and cuttings. These Mini-Blocks are individually wrapped in white plastic to minimize algae growth. Remove wrapping and transplant into any loose media such as Grow-Cubes or coconut fiber or leave wrapping on and set on top of a larger Gro-Block. Packed in easy tear-away strips, labeled with instructions.

MSRP $466.66
Grodan A-OK 25/40 - 1 in x 1 in Plugs (200/Sheet) (30 Sheets/Cs) Grodan A-OK 25/40 - 1 in x 1 in Plugs (200/Sheet) (30 Sheets/Cs)

A-OK Starter Plugs for starting seeds and rooting of cuttings prior to plugging into the larger Gro-Blocks. A-OK Starter Plugs come labeled with instructions in a shrink-wrapped sheet that fits a standard 10 x 20 tray (flat). Note: Item #713020 is supplied without shrink wrap.

MSRP $487.49