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1290 products
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$21.99
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Gro4 Earthworm Castings are an excellent all-purpose alternative to chemical-based fertilizers, conventional manures, compost and even other organic fertilizers. This product is a premium organic soil amendment with zero fillers. Because of its high-performance reputation, it has become known as “black gold” amongst farmers. The 100% pure earthworm castings act as a soil conditioner that is certified for organic agriculture by Pro-Certified Organic Systems and the OMRI.
In the delicate balance of soil microbiology, chemical fertilizers prevent adequate absorption of nutrients and destroy the beneficial microbes and bacteria that root systems crave. The synthetic nutrient compounds found in these alternatives also become easily diluted during watering and ultimately end up in our food. Chemical fertilizers often accompany the use of pesticides which together are a leading cause of environmental water pollution.
What do Worm Castings do for Plants?
Ingredients are composed of thousands of pure cylindrically shaped earthworm pellets. During their growth cycle, worms consume organic matter that is then transformed and homogenized within their digestive tract. The end product consists of minerals and trace elements that have been reduced to their most usable form. Each bag is screened to remove large lumps for ideal soil texture. The natural cylindrical pellet shape resists packing and causes soil to be kept loose and oxygenated. Increased oxygen in the root zone along with improved water drainage creates free-living Nitrogen-fixing bacteria in your soil. In this sense, the soil environment becomes a living mixture teeming with microbial life in a balanced feed cycle that nature intended.
How Much Worm Castings to Use?
Casting manure contains an abundance of high absorption non-burning nutrients. They can be applied as a top dressing, side dressing or be mixed into the soil to bring it to life. Often only a small amount is needed and applied directly to plant holes and seed furrows. Castings cannot be overused or misused, so even delicate seeds are safe. Supplementing your soil with this fertilizing boost will create optimal plant growth. Any plant from flowers to fruits to vegetables will develop with robust roots, prominent blooms and a striking difference in yield, size, health, color and even taste. Gro4 Worm Castings can be used indoors or outdoors for seed germination, seedling propagation or on existing plants.
In the delicate balance of soil microbiology, chemical fertilizers prevent adequate absorption of nutrients and destroy the beneficial microbes and bacteria that root systems crave. The synthetic nutrient compounds found in these alternatives also become easily diluted during watering and ultimately end up in our food. Chemical fertilizers often accompany the use of pesticides which together are a leading cause of environmental water pollution.
What do Worm Castings do for Plants?
Ingredients are composed of thousands of pure cylindrically shaped earthworm pellets. During their growth cycle, worms consume organic matter that is then transformed and homogenized within their digestive tract. The end product consists of minerals and trace elements that have been reduced to their most usable form. Each bag is screened to remove large lumps for ideal soil texture. The natural cylindrical pellet shape resists packing and causes soil to be kept loose and oxygenated. Increased oxygen in the root zone along with improved water drainage creates free-living Nitrogen-fixing bacteria in your soil. In this sense, the soil environment becomes a living mixture teeming with microbial life in a balanced feed cycle that nature intended.
How Much Worm Castings to Use?
Casting manure contains an abundance of high absorption non-burning nutrients. They can be applied as a top dressing, side dressing or be mixed into the soil to bring it to life. Often only a small amount is needed and applied directly to plant holes and seed furrows. Castings cannot be overused or misused, so even delicate seeds are safe. Supplementing your soil with this fertilizing boost will create optimal plant growth. Any plant from flowers to fruits to vegetables will develop with robust roots, prominent blooms and a striking difference in yield, size, health, color and even taste. Gro4 Worm Castings can be used indoors or outdoors for seed germination, seedling propagation or on existing plants.
$20.99
Unit price per$20.99
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Granulated Worm Castings
A slow releasing organic amendment for optimal growth and an excellent nitrogen boost. Granulated castings can be used indoor or outdoor for seed germination, seedling propagation or on existing plants, it is especially beneficial for vegging
A slow releasing organic amendment for optimal growth and an excellent nitrogen boost. Granulated castings can be used indoor or outdoor for seed germination, seedling propagation or on existing plants, it is especially beneficial for vegging
$16.00
Unit price per$16.00
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A-Ok Starter Plugs are for starting seeds and rooting cuttings prior to plugging into larger Gro-Blocks.
The 1.5” size fits perfectly in the Gro-Smart tray as well as all our pre-drilled Gro-Blocks.
One advantage of using the Gro-Smart tray is that it elevates the plugs above the waterline and ensures good airflow around the plugs.
A-Ok plugs come labeled with instructions in a shrink-wrapped package that fits a standard 10 x 20 tray (flat).
Detailed description:
- A-OK PLUGS /MACROPLUGS : AO 36/40 (1.5” plugs)
- Size of Plug : 1.4" sq. x H 1.57"
- Plugs/Package : 98
The 1.5” size fits perfectly in the Gro-Smart tray as well as all our pre-drilled Gro-Blocks.
One advantage of using the Gro-Smart tray is that it elevates the plugs above the waterline and ensures good airflow around the plugs.
A-Ok plugs come labeled with instructions in a shrink-wrapped package that fits a standard 10 x 20 tray (flat).
Detailed description:
- A-OK PLUGS /MACROPLUGS : AO 36/40 (1.5” plugs)
- Size of Plug : 1.4" sq. x H 1.57"
- Plugs/Package : 98
$16.00
Unit price per$16.00
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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)
$16.33
Unit price per$16.33
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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).
$2.00
Unit price per$2.00
Unit price perThe ideal growing media for microgreens and baby leaf crops
Grodan Cress Plate is a stonewool substrate to grow microgreens and baby leaf crops.
Size: 495*240*10 mm
Key benefits
- Thinnest Grodan product available
- Consistent structure results in quick and easy germination
- Uniform density allows for uniform water levels throughout the product resulting in even crop growth
From $4.99
Unit price perFrom $4.99
Unit price perGrodan Hugo Gro-Blocks can support many species throughout their lifecycle. The Hugo comes with a pre-fabricated hole that’s perfectly sized to accommodate 1.5” Grodan A-OK Starter Plugs™. Be sure not to rush the propagation period and allow your seedlings or cuttings sufficient time to fully exploit the stone wool in the Grodan A-OK Starter Plug™ before transplanting.
Hugo is large enough to grow out most vegetables and some fruits for the entire life span of the plant.
Hugo’s holes are the perfect size for any 1.5” A-OK starter plug or Macroplug.
When your starter has outgrown its home, showing three leaves, or roots reaching one 1” below the cube, Hugo is happy to receive the transplant.
Hugo is sold individually with instructions on the wrapping.
Hand water or use with drippers or in Ebb & Flow (Flood) systems.
Detailed description:
- Gro-Blocks : Hugo 6"
- Size in inches : 6x6x6
- Hole sizes avail : 1.5"
- Blocks/Strip : 1
- Usage Example : Grow plants up to 3-4ft.
- Sold Individually, or Case with 64 unwrapped Blocks
From $0.25
Unit price perFrom $0.25
Unit price per
New Grodan Improved! Improved product at current pricing. New density + new hydrophilic technology = better water distribution and root development. The uniform distribution of water and nutrients throughout the block allows for more efficient use of the entire substrate volume Full saturation of the blocks with no dry spots and improved EC control with less water is achieved in the rootzone due to the uniform, optimized wool resulting in a sustainable water and nutrient use. Improved “re-wettability” able to more easily increase water concentration in the substrate.
$14.99
Unit price per$14.99
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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 1.5in 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.
$14.99
Unit price per$14.99
Unit price per
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 1.5in 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.
From $0.35
Unit price perFrom $0.35
Unit price per
Macroplugs have a slit that allows for easy insertion of a cutting or bare-root plant.
These round plugs fit perfectly into our Gro-Blocks™.
For best results with these Macroplugs always insert them in the GRODAN Gro-Smart tray.
The individual cells will make sure that the plugs stay closed around the stem of your cutting.
For information on how to take cuttings please go to our SEED pages.
Try out our Macroplugs today and see what you have been missing! Macroplugs come in a convenient 50 count bag.
SIZE OF PLUG: 1.5" round
Plugs/Package: 50 or sold individually
These round plugs fit perfectly into our Gro-Blocks™.
For best results with these Macroplugs always insert them in the GRODAN Gro-Smart tray.
The individual cells will make sure that the plugs stay closed around the stem of your cutting.
For information on how to take cuttings please go to our SEED pages.
Try out our Macroplugs today and see what you have been missing! Macroplugs come in a convenient 50 count bag.
SIZE OF PLUG: 1.5" round
Plugs/Package: 50 or sold individually
From $0.35
Unit price perFrom $0.35
Unit price per
Macroplugs have a slit that allows for easy insertion of a cutting or bare-root plant.
These round plugs fit perfectly into our Gro-Blocks™.
For best results with these Macroplugs always insert them in the GRODAN Gro-Smart tray.
The individual cells will make sure that the plugs stay closed around the stem of your cutting.
For information on how to take cuttings please go to our SEED pages.
Try out our Macroplugs today and see what you have been missing! Macroplugs come in a convenient 50 count bag.
SIZE OF PLUG: 1.5" round
Plugs/Package: 50 or sold individually
These round plugs fit perfectly into our Gro-Blocks™.
For best results with these Macroplugs always insert them in the GRODAN Gro-Smart tray.
The individual cells will make sure that the plugs stay closed around the stem of your cutting.
For information on how to take cuttings please go to our SEED pages.
Try out our Macroplugs today and see what you have been missing! Macroplugs come in a convenient 50 count bag.
SIZE OF PLUG: 1.5" round
Plugs/Package: 50 or sold individually
$14.50
Unit price per$14.50
Unit price per
A-OK Starter Plugs™ for starting seeds and rooting of cuttings prior to plugging into the larger Gro-Blocks. A-OK Starter Plugs™ Fits 10 x 20 tray (flat).
$15.50
Unit price per$15.50
Unit price per
A-OK Starter Plugs™ for starting seeds and rooting of cuttings prior to plugging into the larger Gro-Blocks. A-OK Starter Plugs™ sheet fits a standard 10 x 20 tray (flat). Note: Item supplied without shrink wrap.
From $1.99
Unit price perFrom $1.99
Unit price perGro-Blocks™ are similar to a plant container. Need a 4 in pot? Then choose a 4 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.
Whether starting your seeds and cuttings in A-OK Starters, Macroplugs, or Mini-Blocks it is a good idea to transplant into a 3” or 4” block.
You know it’s time to transplant to the Gro-Block when roots coming out of the starter are about 1” long.
Just place your Mini-Block on top of the 3” or 4” block without the hole, or your Macroplug/A-OK into the 3” or 4” block with the hole and watch your plant flourish.
Detailed description:
- Gro-Blocks : Delta 10 Large 4"
- Sizes in inches : 4x4x4
- Hole sizes available : 1.5"
-Sold Individually, Blocks/Package of 6 unwrapped, or Case with 24 Package/144 unwrapped Blocks