Gothic Arch Greenhouses

Most Trusted Name in Greenhouses & Supplies-Serving the Horticulture Industry since 1946!

PO Box 1564 Mobile, AL 36633 USA.
1-800-531-4769 (toll free) •  251-471-5238 (local) • 251-471-5465 (fax)

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Nutrients and Supplements

One Grow & Flower

Dutch Master ONE is a remarkable breakthrough in one part hydroponic nutrient development. Dutch Master One now stands atDutchmaster One Grow and Flowerthe forefront of one part nutrient development by incorporating revolutionary Calcium Binding Technology together with proprietary Bio Delivery & Ionic Balancing Technologies.

By enabling Calcium to be bound in concentrate and then released again upon dilution, Dutch Master ONE has overcome the most crucial hurdle in One Part Nutrient development, that of insufficient Calcium and Sulfur status. Until now the Calcium and Sulfur status of one part nutrients has been marginal at best, leaving your plants nutritional status compromised of these vitally important elements. The revolutionary Calcium Binding, dedicated Bio Delivery & Ionic Balancing Technologies within Dutch Master ONE ensures that your plants nutritional status of these vital elements are never compromised. The ionic balancing incorporated into Dutch Master ONE ensures that all the elements, not only Calcium & Sulfur contained within the concentrate, are at maximum bio availability. This helps ensure that your plants will grow and flower to their true potential.

You now have access to a 1 part nutrient that is superior in performance to most multiple part hydroponic nutrients. All this with the ease of use that only a 1 part nutrient can offer.

These remarkable breakthroughs in nutrient and solution dynamics are only possible through the dedication of Dutch Masters R.D team. As always, Dutch Master ONE is fully tested in an independent laboratory prior to bottling to ensure that you NEVER receive an unbalanced bottle of Dutch Master ONE. A feature unique only to Dutch Master products.
For mind blowing results use Dutch Master ONE together with Max Vegetative & Flowering boost & always use Dutch Master Potash Plus for results that you have to see to believe! 


Model # Description Price Buy Now
N01-DMOG-719280 Dutch Master One GROW - 34 oz $10.00 shopping cart
N01-DMOG-719285 Dutch Master One GROW - 1.32 Gallon $33.00 shopping cart
N01-DMOF-719300 Dutch Master One FLOWER - 34 oz. $10.00 shopping cart
N01-DMOF-719305 Dutch Master One FLOWER - 1.32 Gallon $33.00 shopping cart


Max Grow & Flower

Dutch Master™ Max Grow 1-1-5 & Flower.11-2-3 legendary performance is based on our unique Humatic Isolate andDutchmaster Max Grow & Flower Phospholipids technologies that allow for increased availability and uptake of selected elements via chelation. Chelated elements are far more available for uptake and utilization by the plant, regardless of root zone dynamics.

Quite often plants cannot uptake nutrients quickly enough to take full advantage of the optimal conditions supplied to them. DUTCH MASTER™ MAX assists by helping the plant to create special nutrient reservoirs that can be drawn from, in times of unusual demand or circumstances such as accelerated growth patterns or stress due to environmental factors.

MAX Grow is designed to support lush healthy vegetation and growth patterns whereas MAX Flower is designed to support your plants during the flowering or fruiting cycle.


Model # Description Price Buy Now
N01-DMMGF-719350 Max GROW - 34 oz. $18.50 shopping cart
N01-DMMF-719370 Max FLOWER - 34 oz. $18.50 shopping cart
N01-DMMF-719265 Max FLOWER - 1.32 Gallon $71.50 shopping cart


Potash Plus

A good quality phosphorus booster should derive its phosphorus from multiple sources and DUTCH MASTER™ POTASHDutchmaster Zone PLUS has been redesigned to contain no less than 6 different phosphorus sources that have been carefully balanced with essential co-factors and micro nutrients to prevent any unwanted lockout, such as magnesium or zinc

POTASH PLUS was reformulated to provide the next best thing during those last crucial weeks of flowering. POTASH PLUS can also be used for the entire flowering cycle for those that prefer not to foliar spray at all during the flowering period. 


Model # Description Price Buy Now
N01-DMPP-719330 Dutch Master Potash Plus - 34 oz.. $18.50 shopping  cart
N01-DMPP-719335 Max FLOWER - 34 oz. $48.50 shopping  cart



Dutch Master™ ZONE is the technically advanced root zone conditioner that helps your plants build healthy and productive rootDutchmaster Zone systems. Designed specifically for hydroponics systems, ZONE allows your plants to maximally absorb nutrients by creating an optimal root environment. Numerous scientific studies, including our own, have shown plants with the healthiest root systems absorb larger quantities of nutrients and water that leads to superior growth & development of your plants.

ZONE minimizes unfavorable root zone conditions that can limit the health and effectiveness of your plants root system. 


Model # Description Price Buy Now
N01-DMZ-719430 Dutch Master Zone - 34 oz. $24.75 shopping cart
N01-DMZ-719435 Dutch Master Zone - 1.32 Gallon $92.50 shopping cart



Reverse is a revolutionary plant spray that prevents the establishment of a plants reproductive processes. By inhibiting properDutch Master Reverser pollen production this product stops seed formation in most dioeciously plants.

Reverse is ready to use, just add the proper amount of Penetrator and thoroughly cover your leaves and flowers. Use as a preventative before bloom set and as a reactive after flowers have begun to form. This type of product is responsible for the marketed “seedless” varieties of cucumbers, watermelons, and other cucurbits. 


Model # Description Price Buy Now
N01-DMR-719390 Dutch Master Reverse - 34 oz. $18.50 shopping carts

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