FREE SHIPPING ON ALL ORDER OVER $35 (CONTINENTAL US ONLY!)

Hydroponics Nutrients

35 products

Ammonium Sulfate Fertilizer 21-0-0
Ammonium Sulfate Fertilizer 21-0-0
Regular Price
from $ 21.99
Sale Price
from $ 21.99
Regular Price
$ 0.00
Unit Price
per 

31 total reviews

Azomite Ultra Fine 0-0-0.2
Azomite Powder 0-0-0.2 (Ultra Fine)
Regular Price
from $ 25.99
Sale Price
from $ 25.99
Regular Price
Unit Price
per 

5 total reviews

Blossom Green 2-6-8
Regular Price
from $ 24.99
Sale Price
from $ 24.99
Regular Price
$ 24.99
Unit Price
per 

4 total reviews

Organic Boric Acid Powder
Boric Acid
Regular Price
from $ 16.99
Sale Price
from $ 16.99
Regular Price
$ 16.99
Unit Price
per 

16 total reviews

Cal Mag Plus Concentrate
Cal-Mag Plus 2-0-0 Concentrate (Contains 0.1% Iron EDTA)
Regular Price
from $ 33.99
Sale Price
from $ 33.99
Regular Price
$ 33.99
Unit Price
per 

16 total reviews

Ammonium Calcium Nitrate Fertilizer  15.5-0-0 Solution Grade
Calcium Nitrate Fertilizer 15.5-0-0 (Ammonia Calcium Nitrate 15.5-0-0)
Regular Price
from $ 19.99
Sale Price
from $ 19.99
Regular Price
$ 19.99
Unit Price
per 

68 total reviews

Chelated Copper EDTA Fertilizer - 14% Cu
Regular Price
from $ 31.99
Sale Price
from $ 31.99
Regular Price
$ 31.99
Unit Price
per 

9 total reviews

Chelated Iron DTPA 11% Iron
Chelated Iron DTPA Fertilizer
Regular Price
from $ 29.99
Sale Price
from $ 29.99
Regular Price
$ 29.99
Unit Price
per 

18 total reviews

Chelated Iron EDTA Fertilizer 13% Fe
Chelated Iron EDTA Fertilizer
Regular Price
from $ 25.99
Sale Price
from $ 25.99
Regular Price
$ 25.99
Unit Price
per 

27 total reviews

Chelated Manganese EDTA Fertilizer 14% Mn
Chelated Manganese EDTA Fertilizer
Regular Price
from $ 28.99
Sale Price
from $ 28.99
Regular Price
$ 28.99
Unit Price
per 

8 total reviews

Chelated Zinc EDTA Fertilizer 14% Zinc Water Soluble
Chelated Zinc EDTA Fertilizer
Regular Price
from $ 28.99
Sale Price
from $ 28.99
Regular Price
$ 28.99
Unit Price
per 

8 total reviews

Copper Sulfate (Cu) Pentahydrate Fine Crystals 1 Pound
Copper Sulfate Crystals
Regular Price
from $ 21.99
Sale Price
from $ 21.99
Regular Price
$ 21.99
Unit Price
per 

35 total reviews

Cucumber Fertilizer 8-16-36 Plus Micro Nutrients
Regular Price
from $ 24.99
Sale Price
from $ 24.99
Regular Price
$ 24.99
Unit Price
per 

16 total reviews

Epsom Salt (Magnesium Sulfate)
Regular Price
from $ 17.99
Sale Price
from $ 17.99
Regular Price
Unit Price
per 

41 total reviews

Ferrous Sulfate (Iron Sulfate)
Regular Price
from $ 18.99
Sale Price
from $ 18.99
Regular Price
$ 18.99
Unit Price
per 

48 total reviews

Sale
Hydroponics Bundle
Regular Price
$ 99.99
Sale Price
$ 99.99
Regular Price
$ 116.96
Unit Price
per 

7 total reviews

Lettuce Fertilizer 8-15-36 2 Pounds
Lettuce Fertilizer 8-15-36 Plus Micro Nutrients
Regular Price
from $ 24.99
Sale Price
from $ 24.99
Regular Price
$ 24.99
Unit Price
per 

29 total reviews

Sale
Lettuce Fertilizer and Cal Mag (Small)
Regular Price
$ 64.99
Sale Price
$ 64.99
Regular Price
$ 72.98
Unit Price
per 

Magnesium Nitrate and Magnesium Oxide 11-0-0 2 Pounds
Magnesium Nitrate & Magnesium Oxide Formula 11-0-0
Regular Price
from $ 22.99
Sale Price
from $ 22.99
Regular Price
$ 22.99
Unit Price
per 

5 total reviews

Manganese Sulfate
Regular Price
from $ 19.99
Sale Price
from $ 19.99
Regular Price
$ 19.99
Unit Price
per 

19 total reviews

Monoammonium Phosphate 12-61-0 Solution Grade 2 Pounds
Monoammonium Phosphate Fertilizer 12-61-0
Regular Price
from $ 24.99
Sale Price
from $ 24.99
Regular Price
$ 24.99
Unit Price
per 

13 total reviews

Monopotassium Phosphate 0-52-34
Regular Price
from $ 33.99
Sale Price
from $ 33.99
Regular Price
$ 33.99
Unit Price
per 

52 total reviews

Pepper and Herb Fertilizer 11-11-40 Plus Micronutrients 100% Water Soluble 2 Pounds
Pepper & Herb Fertilizer 11-11-40 Plus Micro Nutrients
Regular Price
from $ 24.99
Sale Price
from $ 24.99
Regular Price
$ 24.99
Unit Price
per 

30 total reviews

Potassium Chloride (Muriate of Potash) 0-0-62
Regular Price
from $ 19.99
Sale Price
from $ 19.99
Regular Price
$ 19.99
Unit Price
per 

21 total reviews

Potassium Sulfate 0-0-53 Fertilizer Solution Grade 2 Pounds
Potassium Sulfate Fertilizer 0-0-53
Regular Price
from $ 21.99
Sale Price
from $ 21.99
Regular Price
$ 21.99
Unit Price
per 

48 total reviews

Sodium Molybdate
Regular Price
$ 79.99
Sale Price
$ 79.99
Regular Price
Unit Price
per 

2 total reviews