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Free Shipping on most orders over $175 | Sales Tax in NJ only
Free Shipping on most orders over $175 | Sales Tax in NJ only

All Propagation Supplies

Strong clones and seedlings begin with the right setup. Our propagation collection includes seedling trays with humidity domes for ideal moisture control, heat mats and thermostats to maintain root zone warmth, and starter plugs like rock‑wool cubes that support clean and healthy growth.

Add rooting compounds to boost root development, then illuminate your workspace with low‑heat propagation lights that won’t stress young plants. Pick your propagation supplies now and jumpstart a thriving setup from seed to transplant.

Image of Cultiwools’ high-quality stone wool starter plugs for germination of seeds or fast root development of cuttings (clones).
$399.00 - $3,479.00
$399.00 - $3,479.00
$399.00 - $3,479.00
$399.00

Cultiwool Starter Plugs - 1.5"

Cultiwool

Cultiwool Starter Plugs - high quality rockwool grow medium They are perfect for transplanting to bigger grow blocks as your seed or clone grows. T...

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$399.00 - $3,479.00
$399.00 - $3,479.00
$399.00 - $3,479.00
$399.00
Cultiwool Block 4x4x2.5 front angle showing side grooves and uniform rockwool fiber structure that improves air to water ratio and supports strong root growth for hydroponic systems.
Cultiwool Block 4x4x2.5 front view showing low-density rockwool cube with pre-formed planting hole designed for fast rooting and healthy crop development in hydroponics.
$199.00 - $1,579.00
$199.00 - $1,579.00
$199.00 - $1,579.00
$199.00

Cultiwool Block 4'' x 4'' x 2.5''

Cultiwool

Cultiwool blocks - low density rockwool for fast rooting from plugs. From the melting of the basalt, until the transformation to germination plugs...

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$199.00 - $1,579.00
$199.00 - $1,579.00
$199.00 - $1,579.00
$199.00
Cultiwool Block 6x6x6 front angle showing side grooves and uniform rockwool fiber structure that improves air to water ratio and supports strong root growth for hydroponic systems.
Cultiwool Block 6x6x6 front view showing low-density rockwool cube with pre-formed planting hole designed for fast rooting and healthy crop development in hydroponics.
$187.00 - $2,089.00
$187.00 - $2,089.00
$187.00 - $2,089.00
$187.00

Cultiwool Block 6'' x 6'' x 6''

Cultiwool

Cultiwool blocks - low density rockwool for fast rooting from plugs. Cultiwool is a leading manufacturer of rockwool - a popular grow medium that ...

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$187.00 - $2,089.00
$187.00 - $2,089.00
$187.00 - $2,089.00
$187.00
Cultiwool Block 6x6x4 front angle showing side grooves and uniform rockwool fiber structure that improves air to water ratio and supports strong root growth for hydroponic systems.
Cultiwool Block 6x6x4 front view showing low-density rockwool cube with pre-formed planting hole designed for fast rooting and healthy crop development in hydroponics.
$199.00 - $1,499.00
$199.00 - $1,499.00
$199.00 - $1,499.00
$199.00

Cultiwool Block 6" x 6" x 4"

Cultiwool

Cultiwool blocks - low density rockwool for fast rooting from plugs. Cultiwool is a leading manufacturer of rockwool - a popular grow medium that ...

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$199.00 - $1,499.00
$199.00 - $1,499.00
$199.00 - $1,499.00
$199.00
Multiple Cultiwool Mini Clone Blocks arranged in a shrink-wrapped tray, showing uniform yellow rockwool cubes encased in white printed wrap for young plant propagation.
Close-up of individual Cultiwool Mini Clone Blocks, including a separated single cube and a full strip, featuring pre-drilled holes and labeled white wrap for easy transplanting.
$349.00 - $3,009.00
$349.00 - $3,009.00
$349.00 - $3,009.00
$349.00

Cultiwool Mini Clone Block 1.5" x 1.5" x 1.5"

Cultiwool

Cultiwool Mini Clone Blocks are a fantastic medium for young plant propagation. Cultiwool is a leading manufacturer of rockwool - a popular grow m...

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$349.00 - $3,009.00
$349.00 - $3,009.00
$349.00 - $3,009.00
$349.00
Cultiwool Block 4x4x4 front angle showing side grooves and uniform rockwool fiber structure that improves air to water ratio and supports strong root growth for hydroponic systems.
Cultiwool Block 4x4x4 front view showing low-density rockwool cube with pre-formed planting hole designed for fast rooting and healthy crop development in hydroponics.
$199.00 - $1,579.00
$199.00 - $1,579.00
$199.00 - $1,579.00
$199.00

Cultiwool Block 4'' x 4'' x 4''

Cultiwool

Cultiwool blocks - low density rockwool for fast rooting from plugs. Cultiwool is a leading manufacturer of rockwool - a popular grow medium that ...

View full details
$199.00 - $1,579.00
$199.00 - $1,579.00
$199.00 - $1,579.00
$199.00