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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

Cultiwool

Cultiwool stonewool grows cubes and blocks engineered for propagation and crop transitions. Made in Europe and RHP certified, these media deliver consistent air–water balance for fast rooting, strong nutrient uptake, and ideal pH stability. Sizes range from 1 cm mini cubes for small seedlings to 4″ and 6″ starter blocks with macro-plug cutouts, perfect for larger clones or young plants.

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
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 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
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 ...

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$199.00 - $1,579.00
$199.00 - $1,579.00
$199.00 - $1,579.00
$199.00
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