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Starter Plugs and Trays

Dr Greenthumb
Dr Greenthumb

Plant Cloning basics to get you started.

Trays with starter plugs are your solution for plant propagation or seed germination.

You'll also find heat mats and peat pots here.

Prefer price list? click here
  Black Propagation Tray NO holes 
Black Standard Flat Trays have NO drainage holes and conveniently stack when not in use. 
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  Black Propagation Tray WITH holes 
Black 10 X 20 Standard Flat Trays WITH drainage holes that conveniently stack when not in use. 
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  Europonic Rockwool Conditioner 
Europonic Rockwool Conditioner is a growing media conditioner that neutrilizes the pH level of rockwool to provide maximum nutrient uptake to your plants. 
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  Fast-Gro Propagation Heat Mats 
These root zone heating mats have been used in commercial greenhouses for years to jump-start seedlings and plant cuttings. The Fast-Gro Propagation Heat Mats are smaller versions of their greenhouse variety, made just for home use. 
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  Germination Station with Heat Mat 
Plant seeds need specific levels of heat and moisture to successfully sprout and grow into healthy seedlings. 
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  Green Capillary Mats 
These Green Capillary Mats are made of 100 percent UV-protected, non-woven polypropylene created from recycled plastic water bottles. Green is good! 
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  Grodan A-OK Starter Plugs 
A-OK Starter Plugs are designed for starting seeds and plant clones. They come in a sheet that fits any standard 10" x 20" flat. 
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  Grodan Growcubes 
Growcubes are small 1/4-inch cubes of stonewool (rockwool). They're made of the same high-quality stonewool as larger Grodan cubes and slabs, but these miniature sized Growcubes fit any container size or shape. 
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  Grodan Macroplugs 
Macroplugs are great for plant cloning or starting seedlings. 
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  Grodan Mini-blocks 
The starter Mini-blocks from Grodan are popular for seed and plant cutting propagation. The fibrous structure of the Starter Mini-blocks creates an ideal air-to-water ratio that encourages robust root development. 
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  Gro-Smart Tray Insert 
The Grodan Gro-Smart Tray Insert was designed to hold any of the popular Grodan starter stonewool options. 
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  Hot House with Heat Mat 
Give your plant seeds the warm, moist environment needed to increase the germination rate. 
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  Hydrofarm Digital Heat Mat Thermostat 
The Hydrofarm Heat Mat Thermostat is a digital temperature controller for the heat mats used under plant trays. 
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  Hydrofarm Seedling Heat Mat 
Increase the success rate of your seedlings and plant cuttings with a Hydrofarm Seedling Heat Mat. 
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  Jiffy-7 Peat Pellets 
Jiffy-7 Peat Pellets are the convenient, no-mess way to start flower and vegetable seeds and cuttings. 
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  Jump Start Windowsill Heat Mat 
The Hydrofarm Jump Start windowsill heat mat is perfect for germinating seeds or growing small plants next to your windows. 
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  Jumpstart 12 Pellet Window Greenhouse 
The Jumpstart 12 Pellet Window Greenhouse is perfect for germinating flower, herb and vegetable seeds. 
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  Jumpstart Greenhouse Pellet REFILL - 36 pack 
These fast-expanding, earth-friendly peat pellets are the refills used with the Hydrofarm JumpStart Pellet Greenhouses. 
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  Mondi Mini Greenhouse Dome with Vents 
The Mondi Mini Greenhouse is a seven inch tall dome that fits any 10 X 20 nursery tray. 
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  Quad Thick Trays 
Quad Thick Trays are literally four times thicker than regular 1020 nursery trays. 
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  Rapid Rooter Plugs 
If you use the General Hydroponics Rapid Rooter Tray, you will need 50 of these replacement plugs for your next growing season. 
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  Rapid Rooter Tray with Plugs 
The Rapid Rooter Kit comes with a 50-cell plug tray and includes grow plugs. 
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  ReadyGro Super Plugs 
Ready Gro Super Plugs have the consistency of a sponge-like material. These biodegradable and 100% organic soilless grow plugs are made of composted tree bark and other organic materials. 
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  Redi-Heat Professional Propagation Mat & Thermostat 
Growers can provide a consistent supply of heat to transplants, cuttings or clones using a commercial-grade Redi-Heat Professional Propagation Mat. 
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  Redi-Heat Professional Propagation Mat Thermostat 
This mechanical-style heat mat thermostat provides up to 1800 watts of power. 
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  Redi-Heat Professional Propagation Mats 
Provide a steady supply of heat to transplants, plant cuttings and clones with a Redi-Heat Professional Propagation Mat. 
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  Root Riot Cube Tray with Clonex 
Made from composted organic materials, Root Riot starter cubes have a great spongy texture which retains the perfect air-to-water ratio for healthy, rapid root growth. 
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  Root Riot Cubes 
Suitable for both plant cuttings and seed germination, Root Riot Cubes give you faster, more vigorous rooting results. 
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  Root Shooters 
Root Shooters™ are the perfect rooting medium for seeds and plant cloning. Jiffy® and Advanced Nutrients, two of the most knowledgeable gardening companies, combined their expertise to create them. 
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  Round Jiffy Peat Pot - 4-inch 
Round Jiffy Peat Pots decompose right into the soil, so there's no risk of root damage because you don't remove the plant from the peat pot. 
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  Square Jiffy Peat Pot - 3-inch 
All-natural square Jiffy Peat Pots are made of 100% biodegradable Canadian sphagnum peat moss. 
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  Standard Flat Dome 
This Standard Flat Dome covers any 10 X 20 nursery tray to turn it into a mini greenhouse. 
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  Super Soak 
Supernatural Super Soak (previously known as Rockwool Soak) is an acid buffer that does not contain ammonia, so there's no worry of your plants getting burned. 
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  Super Sprouter Thermostat 
With its precise settings, the Super Sprouter Thermostat lets you contol the seedling heat mat temperature to easily dial in the ideal seedling germination temperature. 
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  White Propagation Tray NO holes 
White Standard Flat Trays have NO drainage holes. When not in use they conveniently stack to save space. 
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Lighting   ·   Organic Seeds    ·    Growing Medium   ·   Pots and Containers
 

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Growco Indoor Garden Supply
1042 Michigan NE  ·  Grand Rapids, Michigan USA  49503-1908
phone: (616) 454-6900  ·  toll free: 877-939-6900
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