Rockwool – HYDROTECH HYDROPONICS

Grodan Cress Plate Flat 10'' X 20''

From $1.75

Grodan Multiblocks are designed for seed and cutting propagation prior to "blocking on" into the larger growing blocks. Multiblocks are a free standing module-type growing system. The V-shaped individual "cells" within a multiblock sheet allow effective air pruning. This encourages rooting within, rather than between, individual blocks. All multiblocks come in 1.5" blocks and fit in a standard 10x20 propagation flat.

Grodan 1.5" Multi-Blocks

From $0.20

Grodan A/O Flats

From $16.50

Grodan Macroplug are great and easy to use for cuttings. Full side slit enables easy insertion of the rooted cutting. Fits Gro-Block holes and also the cellular side of the Gro-Smart tray(keeping the plug firmly closed around the stem of the cutting).

Grodan Macroplug (50 cubes per bag)

$12.65

Grodan Delta constitutes the basis for the uniform and perfectly controllable propagation of plants, the condition to be met for powerful and healthy plant growth. Each block has a virtually identical density, flexibility and sturdiness, guaranteeing a uniform distribution of the WC, EC and pH which in turn results in a uniform and high-quality plant

Grodan Delta 4 (3 x 3 x 2.5) NO-HOLE

$0.83

Grodan Delta constitutes the basis for the uniform and perfectly controllable propagation of plants, the condition to be met for powerful and healthy plant growth. Each block has a virtually identical density, flexibility and sturdiness, guaranteeing a uniform distribution of the WC, EC and pH which in turn results in a uniform and high-quality plant.

Grodan Delta 4 (3 x 3 x 2.5)

$0.86

Grodan Delta constitutes the basis for the uniform and perfectly controllable propagation of plants, the condition to be met for powerful and healthy plant growth. Each block has a virtually identical density, flexibility and sturdiness, guaranteeing a uniform distribution of the WC, EC and pH which in turn results in a uniform and high-quality plant. Grodan Delta guarantees plant propagators an optimum air/water balance.

Grodan Delta 6.5 (4 x 4 x 2.5)

$0.85

Grodan Delta constitutes the basis for the uniform and perfectly controllable propagation of plants, the condition to be met for powerful and healthy plant growth. Each block has a virtually identical density, flexibility and sturdiness, guaranteeing a uniform distribution of the WC, EC and pH which in turn results in a uniform and high-quality plant. Grodan Delta guarantees plant propagators an optimum air/water balance.

Grodan Delta 10 (4 x 4 x 4)

$1.97

The Grodan Hugo is the largest rockwool block; 6 x 6 x 6 inch Growing blocks with 1-1/2 inch hole for smaller cubes. These are used for growing real big plants. These cubes work best with a drip system. In a flood system the top half can dry out quickly and lead to salt buildup so rinse often is necessary. These blocks are individually wrapped in plastic on four sides to hold moisture and stop alga growth. The base of each block is grooved for drainage. Holes in the center for the 1.5 inch cube.

Grodan Hugo Block

$4.25

Slabs are the premium product for vegetable cropping. They are available wrapped in UV resistant polyethylene sleeves for ease of use. The special structure provides a uniform environment allowing plant roots to rapidly explore all the available growing volume for a quick start. Water and nutrient distribution is also more uniform and provides a larger effective rooting volume than previously possible. Slabs come in 36" lengths and 3" heights and have two different sizes of widths.

Grodan Slabs (6"W x 36"L x 3"H)

$9.05

Slabs are the premium product for vegetable cropping. They are available wrapped in UV resistant polyethylene sleeves for ease of use. The special structure provides a uniform environment allowing plant roots to rapidly explore all the available growing volume for a quick start. Water and nutrient distribution is also more uniform and provides a larger effective rooting volume than previously possible. Slabs come in 36" lengths and 3" heights and have two different sizes of widths.

Grodan Slabs (8"W x 36"L x 3"H)

$13.00