Skip to content
Get FREE SHIPPING on Your Order Over $50!
Menu

Starter Plugs & Cubes

Seed starting is any gardener’s first step to a successful harvest, and what better medium to get started in than Rockwool? Inert, pH stable, reusable and high in oxygen retaining capacity, Rockwool starter plugs and cubes are an effective substrate to start seeds, cut clones, and vegetate small plants. Unlike alternatives like coco coir and peat moss plugs, Rockwool will not break down and can be re-used through multiple growing seasons. Made from spun molten basalt rock, Rockwool is a unique and powerful addition to any indoor gardener’s grow space. Shop now at HTG Supply for all your Rockwool seed starting needs.

Read More
Product Filters
Brand
Weight Limit
Wattage
Voltage
System Type
Style
Speed Control Compatible
Spectrum Type
Fitting Size
Flange Size
Reflector Size
Size
Socket Type
Shape
Reversible
Reflector Type
Probe Type
Portability
Planting Sites
Output Control
Outlets
Number of Lamps
Module Capacity
Material
Light Type
Light Source
Lamp Drive Frequency
HID Type
HID Bulb Type
Fitting Type
Component Type
Chip Type
Base Type
Ballast Component Type
Application Type
Application Type
Growing Method
GPH
Fixture Configuration
Fan CFM
Configuration
Color Temp. (Kelvin)
CFM
Bulb Length
Built-In Socket
Filters
Product Filters
Weight Limit
Wattage
Voltage
System Type
Style
Speed Control Compatible
Spectrum Type
Fitting Size
Flange Size
Reflector Size
Size
Socket Type
Shape
Reversible
Reflector Type
Probe Type
Portability
Planting Sites
Output Control
Outlets
Number of Lamps
Module Capacity
Material
Light Type
Light Source
Lamp Drive Frequency
HID Type
HID Bulb Type
Fitting Type
Component Type
Chip Type
Base Type
Ballast Component Type
Application Type
Application Type
Growing Method
GPH
Fixture Configuration
Fan CFM
Configuration
Color Temp. (Kelvin)
CFM
Bulb Length
Built-In Socket
Grodan A-OK 1.5 Starter Plug
Grodan A-Ok 1.5 Inch Starter Plugs Case - 30 Unwrapped Sheets
$473.55
Grodan Improved Gro-Block - 1.5x1.5x1.5 Block
Grodan 2" Improved Gro-Block Rockwool Cubes - Single
$9.66
Rw Aok Plugs
Grodan A-Ok 1.5 Inch Starter Plugs Case - 30 Sheets of 98 Plugs
$657.75
Grodan Improved Gro-Block - 1.5x1.5x1.5 Block
Grodan Improved Gro-Block Rockwool Cubes - 1.5 Inch
$12.83
Cultiwool Mini Cubes - 1.5 Inch
Cultiwool Mini Rockwool Cubes - 1.5 Inch
$6.75
Cultiwool Seed Starter Tray
Cultiwool Seed Starting Tray
$15.55
Rw Aok Plugs
Grodan A-Ok 1.5 Inch Starter Plugs Sheet of 98
$21.93
Grodan A Ok Starter Plugs 1 Inch
Grodan A-Ok 1 Inch Starter Plugs Sheet of 200
$16.25
Rockwool Minicubes
Rockwool / Stonewool 1.5 Inch Cubes - 45 Pack
$9.46
Rockwool Macroplugs
Rockwool Stonewool Macro Plugs - 50 Pack
$12.16

Recently Viewed products

Our Latest Articles & Videos