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Liquid Nutrients and Soil Amendments
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We carry a full range of liquid nutrients designed and processed by experienced horticulturists. They are designed with hydroponic production in mind and some are created for either foliage or flowering crops being grown in specific types of systems. Ingredients in the nutrients are altered for different applications depending on aeration of the solution and root exposure times to the solution. Providing your plant with the exact nutrients needed , in the correct forms, and at the right times will make for optimal growth and minimal waste (this means no over-fertilizing or polluting groundwater with excess nutrient runoff).
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For a Limited Time, |
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| $18.00 per pound of dye-free crystal |
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Organic extract from humic acid. Has properties that increase the penetration and effectiveness of foliar nutrients, pesticides, and herbicides. Stand alone spray will improve color and quality of foliage and fruit. |
email us if there is no button |
| $.99 each or $10.80 for 12 | ||||
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Natural Water conditioners and pH adjusters
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Hydroponic nutrients
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KumuGrow![]() |
Our one part liquid nutrient ideal for constant feed soilless media
and recirculating hydroponics. Integrated hormones, B-vitamins, and a delivery system that allows for a full nutrient complex. |
Gallon Size $37.00 + S&H |
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Individual Quarts
Gallon Size A & B with 4x strength C quart
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| 15-16-17 plus extra micros and moisture controlers Water soluble nutrient especially designed for peat moss, cinder, and high drainage soils. |
$12.00 per pound of dry, water soluble, crystal
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Click here to download a pdf. of the feeding chart

All of our liquid-based products are available in quart/liter sizes have the option of
- (dsp) a twin-neck bottle with a built in oz. measuring cup that fills when you squeeze the bottle
- (qt) a cylindrical wide-mouth bottle that is about $3-$4 less expensive
We suggest that initial purchase be the twin-neck and that you keep this bottle as it is refillable. Next time buy the cheaper bottle or a full gallon to refill your original twin-neck. To operate the twin-neck simply keep the regular spout capped and open the measuring chamber. Next you squeeze the bottle until the chamber fills to your desired level (fl. oz. on one side and ml the other) and is ready to dispense.

Here are some general feeding recommendations for our hydroponic grade fertilizers
Constant liquid feed recommendations Target EC
Plugs, Containerized plants, Bedding plants .08 - 1.2
Potted foliage 1.2 - 1.7
Potted flowering crops, landscaping/outdoor plants 1.7 - 2.4
Vegetable and root crops 1.5 - 1.9
Bi-weekly feeding recommendations Target EC
Plugs 1.0 - 1.2
Containerized plants, Bedding plants 1.2 - 2.1
Potted foliage, 1.2 - 1.9
Potted flowering crops, landscaping/outdoor plants 1.9 - 2.8
Vegetable and root crops 1.7 - 2.2
Please see FAQ page for info on Shipping, EC readings, and Nutrient Application
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© 2009 Hawaiian Horticulture