Professional Grade Formulas:

These very popular water-soluble fertilizers are designed for professional and home hydroponic growers. Four professional grade formulas are available. All products are produced with the highest quality grade materials for maximum water solubility, contain chelated trace elements and are non-staining.

Packaged conveniently in 8 oz. plastic tubs for ease of use.

Products 1-7 of 7
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Jacks Classic Orchid Special Fertilizer 30-10-10
Price: $8.95
Availability: In Stock
Item #: jacks_8oz-301010 -

Jack's Classic Orchid Special Fertilizer, 30-10-10  - This orchid fertilizer is a very popular water-soluble orchid fertilizer designed for the professional and home orchid grower.  All products are produced with the highest quality grade materials for maximum water solubility, contain chelated trace elements and are non-staining. Packaged in a convenient plastic 8 oz. tub for ease of use.  Especially formulated for orchids grown in fir bark.With Micronutrients. ...

Jacks Classic Orchid Fertilizer 7-5-6
Price: $8.95
Availability: In Stock
Item #: jacksliq756 -

Jack's Classic Orchid Fertilizer 7-5-6 - an orchid fertilizer or all orchid varieties to promote vigorous vegetative growth and promote prolific blooming.State of the art nutrition for orchids, containing major, secondary and trace elements in a completely soluble solution.Jack's Classic Orchid Fertilizer 7-5-6 is easy to mix and use and contains not only major and minor elements but also Calcium and Magnesium, which is essential when using rain water, reverse osmosis water, and relatively...

Jack’s ClassiCote™ with Crystal Green 15-8-23 jacks classic, all purpose fertilizer
Price: $16.95
Availability: In Stock
Item #: TIN54024 -

Jack’s ClassiCote™ with Crystal Green® time-release fertilizer feeds your plants in a sustainable, earth-friendly way utilizing a renewable, slowly available source of phosphorus and magnesium.Jack's Classicote with Crystal Green is now formulated using Crystal Green, a highly pure, crystalline compound with innovative green technology.Releases nutrients gradually for up to 4 months of vigorous growth. Blended with an enhanced micronutrient package which provides optimal nutrition...

Jacks Classic African Violet 12-36-14 jacks classic, all purpose fertilizer, african violet fertilizer
Price: $8.95
Availability: In Stock
Item #: jacks_8oz-123614 -

With Micronutrients. A favorite for commercial violet growers and hobbyists, with a proven formula for over 35 years. High quality nutrients are formulated to deliver the perfect blend to produce deep green foliage, stocky stems, strong root and bud development.Packaged in a convenient plastic 8 oz. tub for ease of use.

Jacks Classic Blossom Booster 10-30-20 jacks classic, all purpose fertilizer, blossom booster fertilizer
Price: $8.95
Availability: In Stock
Item #: jacks_8oz-103020 -

With Micronutrients. Designed for use on all indoor flowering and foliage plants including philodendron, ficus, palms, spider plants, etc. Feeds through both the roots and leaves.

Jacks Classic All Purpose 20-20-20 jacks classic, all purpose fertilizer
Price: $8.95
Availability: In Stock
Item #: JACKS202020-H -

All Purpose 20-20-20 Description & Key Benefits.... All Purpose 20-20-20 is considered the industry standard of general purpose fertilizers by professional growers. It feeds both through the roots and the leaves. This formula of nitrogen, phosphorus and potassium provides fast green-up and rapid leaf expansion. Recommended for use on all your indoor and outdoor plants. Indoors it is especially effective on foliage plants, keeping leaves green. A proven performer in the vegetable garden for...

Jacks Classic Houseplant Special 15-30-15
Price: $8.95
Availability: In Stock
Item #: JACKS153015-H -

Houseplant Special 15-30-15 Description & Key Benefits.... Houseplant Special 15-30-15 is our traditional indoor houseplant fertilizer designed for use on all foliage and flowering plants. Professional growers prefer the 1-2-1 ratio fertilizer used for over 50 years to keep indoor grown plants vigorous and green. Great for long term plants! Used in a constant feed system, it keeps the nutrition levels constant preventing nutrient stress from over or under feeding. This product can also be used...