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Grodan Stonewool Delta Gro-Block 6.5 4 inch x 4 inch x 2.5 inch w/ Hole

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...

Only $158.78

Grodan Stonewool Delta Gro-Block 8 4 inch x 4 inch x 3 inch w/ Hole

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...

Only $169.90

Grodan Stonewool Delta 10 Gro-Block 4 inch x 4 inch x 4 inch w/ Hole - Case of 24 Strips

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...

Only $181.11

Roots Organics Trinity Catalyst -- 5 Gallon

This complex liquid blend of organic compounds is specifically designed for maximum effect as a plant, root, and rhizoshpere catalyst. This exclusive formula is a universal supplement for both growth and bloom. The ingredient list includes such products...

Only $178.15

Roots Organics Extreme Serene 0-2-2 -- 2.5 Gallon

An organic liquid kelp extract which provides a natural source of growth promoting compounds and micronutrients. Specifically designed to encourage vigorous growth, increase flower sites and increase yields, this distinctive blend of amazing plant extracts...

Only $163.24

Roots Organics Oregonism XL -- 6 lbs

A distinctive super-soluble formulation of endo/ecto-mycorrhizae, beneficial bacteria, and Trichoderma. Mycorrhizae colonize the root zone, forming a symbiosis with the plant’s roots, massively increasing the size and effective surface area, facilitating...

Only $191.42

Aurora Innovations Soul Synthetics Grow-N 8-0-0.25 -- 5 Gallon

Soul Grow-N nitrogen supplement was specifically crafted for the gardener who demands faster growth from high-performance fertilizers. A deliberate blend of fast-acting and natural nitrogen and calcium sources engineered for maximum effect and high solubility....

Only $173.39

HortiStick 3-in-1 Multimeter *DISCONTINUED*

The HortiStick 3-in-1 brings the best of technology into one sleek meter. It combines the measurement of the three most crucial parameters needed for a successful harvest: pH, Conductivity, and Temperature. Package content: 1x Main Unit, 1x Hand Strap,...

Only $154.87

Oakton Multi PT Testr 35 (pH/TDS/TEMP)

Great for water, laboratory or plant use, this multi Testr features single-junction pH electrodes for longer life and wider range of sample compatibility. Pin-style conductivity sensors feature stainless steel electrodes for chemical resistance and durability....

Only $171.36

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