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New & Improved Formula of farmhand grow! Our team of plant scientists has been working hard over the last year to improve our farmhand nutrient...

Promote flowering and fruiting with this bundle of our essential farmhand form and bloom nutrients. As a pair, these formulas provide a complete nu...

Promotes cell and tissue structure in plants through a balanced ratio of nitrogen, calcium, and magnesium. When paired with farmhand grow, this pro...

Optimize root growth with these flexible aerated plugs. Designed for faster root development and plant establishment, these compostable grow plugs ...

These 7-foot strips are made of a highly absorbent felt material designed to wick water to the roots of your plants. Place saturation strips betwee...

These 7-foot strips are made of a highly absorbent felt material designed to wick water to the roots of your plants. Place them between the pieces ...

Active Aqua air stones are an ideal way to add oxygen to your hydroponic growing system. Air stones will extend the life of your nutrient solution,...

Active Aqua air stones are an ideal way to add oxygen to your hydroponic growing system. Air stones will extend the life of your nutrient solution,...

Active Aqua air stones are an ideal way to add oxygen to your hydroponic growing system. Air stones will extend the life of your nutrient solution...

Enclose your submersible pump in this fine mesh, zippered filter bag to prevent pump clogging. Filters all forms of biological and nutrient sedimen...

These color-correcting LED Grow Room Lenses let you see the true colors of your plants while working under LED lighting. The lenses feature top-qua...

An effective broad-spectrum bactericide/fungicide that increases plant health by killing algae, bacteria, fungi, and their spores on contact. Label...

Proven to stop pathogens in their tracks, ZeroTol HC is a broad-spectrum bactericide/fungicide peroxyacetic acid chemistry formulated with the smal...

This black plastic bucket lid is the companion to our five gallon plastic bucket. They are sold individually and are finely crafted to provide a st...

This tie gently secures plants with its padded material that does not cut into the stems. The tie's green color blends seamlessly into the garden. ...

2.77 EC conductivity standard calibration solution. Use as a reference or checking solution to ensure you have an adequately cleaned EC/ppm probe. ...

A lab-grade tool designed specifically for horticulture, this easy-to-use pen allows you to quickly measure and calibrate pH. Premium probe technol...

This replacement probe for the GroStar GS1 pH Pen allows you to replace your pen's probe and extend the life of your tool. Premium probe technologi...

A lab-grade tool designed specifically for horticulture, this easy-to-use pen allows you to quickly measure and calibrate pH and temperature in nut...

This replacement probe for the GroStar GS2 Soil Spear pH Pen allows you to replace your pen's probe and extend the life of your tool. Premium probe...

A lab-grade tool designed specifically for horticulture, this easy-to-use pen allows you to quickly measure and calibrate water EC, PPM (500), PPM ...

This replacement probe for the GroStar GS3 EC Pen allows you to replace your pen's probe and extend the life of your tool. Premium probe technologi...

A lab-grade tool designed specifically for horticulture, this easy-to-use pen offers all the functionality you need. Quickly measure and calibrate ...

This replacement probe for the GroStar GS4 5-in-1 Combo Pen allows you to replace your pen's probe and extend the life of your tool. Premium probe ...

What's Included: (1) pH 4.0 calibration solution, 8 oz. (1) pH 7.0 calibration solution, 8 oz.  Details: A pair of essential solutions for ca...

What's Included: (1) pH 4.0 calibration solution, 8 oz. (1) pH 7.0 calibration solution, 8 oz. (1) pH 10.0 calibration solution, 8 oz. Details: ...

What's Included: 3M KCL storage solution (4 oz.) Cleaning solution (8 oz.) CalPod solution organizer Probe cleaning brush Wash bottle Details: ...