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Shop Local. Support Independent. 23 products available
Hydro Nutrients & Additives

Shop 26 hydro nutrients & additives at National Hardware Group — from trusted brands like Botanicare, Foxfarm, General Hydroponics and more. Every item is an authorized, warranty-backed purchase, with prices starting around $12.99. Ships nationwide, free over $75 on most items, or find it at your local store.

Trusted brands only Ships nationwide Pro accounts welcome Support your local hardware store
23 products
SUPERthrive Liquid Concentrate Multiple Nutrient System 1 pt
USA

Superthrive

SUPERthrive Liquid Concentrate Multiple Nutrient System 1 pt

MPN: STPINT-12

$38.99
General Hydroponics FloraBloom Liquid Nutrient System 1 qt
USA

General Hydroponics

General Hydroponics FloraBloom Liquid Nutrient System 1 qt

MPN: HGC718987

$13.99
Roots Organics Nitro Bat Guano Organic Powder Plant Food 3 lb
USA

Roots Organics

Roots Organics Nitro Bat Guano Organic Powder Plant Food 3 lb

MPN: RONB3

$19.99
General Hydroponics MaxiBloom Granules Plant Food 2.2 lb
USA

General Hydroponics

General Hydroponics MaxiBloom Granules Plant Food 2.2 lb

MPN: HGC718281

$15.99
General Hydroponics FloraGro Organic Liquid Nutrient System 1 qt
USA

General Hydroponics

General Hydroponics FloraGro Organic Liquid Nutrient System 1 qt

MPN: HGC718996

$13.99
General Hydroponics pH Down Liquid pH Control 1 qt
12 per case USA

General Hydroponics

General Hydroponics pH Down Liquid pH Control 1 qt

MPN: HGC722120

$191.88
Save 15% at $75+ Case of 12
General Hydroponics MaxiGro Granules Plant Food 2.2 lb
USA

General Hydroponics

General Hydroponics MaxiGro Granules Plant Food 2.2 lb

MPN: HGC718301

$15.99
General Hydroponics Liquid pH Control 1 qt
12 per case USA

General Hydroponics

General Hydroponics Liquid pH Control 1 qt

MPN: HGC722090

$155.88
Save 15% at $75+ Case of 12
General Hydroponics Flora Micro Liquid Nutrient System 1 qt
USA

General Hydroponics

General Hydroponics Flora Micro Liquid Nutrient System 1 qt

MPN: HGC718120

$15.99
SUPERthrive Liquid Concentrate Multiple Nutrient System 4 oz
USA

Superthrive

SUPERthrive Liquid Concentrate Multiple Nutrient System 4 oz

MPN: ST4-12

$17.99
General Hydroponics Flora Series Plant Supplement
USA

General Hydroponics

General Hydroponics Flora Series Plant Supplement

MPN: HGC718978

$49.99
General Hydroponics AzaMax Organic Insect Control Liquid 4 fl. oz.
USA

General Hydroponics

General Hydroponics AzaMax Organic Insect Control Liquid 4 fl. oz.

MPN: HGC724464

$29.99
General Hydroponics Calimagic Liquid Plant Supplement 1 qt
USA

General Hydroponics

General Hydroponics Calimagic Liquid Plant Supplement 1 qt

MPN: HGC733525

$18.99
Mother Earth Acid Drop Acid-Loving Plants 3-4-6 Plant Fertilizer 4.4 lb
USA

Mother Earth

Mother Earth Acid Drop Acid-Loving Plants 3-4-6 Plant Fertilizer 4.4 lb

MPN: HGC733956

$16.99
General Hydroponics RapidStart Liquid Rooting Enhancer 125 ml
USA

General Hydroponics

General Hydroponics RapidStart Liquid Rooting Enhancer 125 ml

MPN: HGC726850

$26.99
Mother Earth Subterra Root Booster Liquid All Plants Plant Supplement 1 pt
USA

Mother Earth

Mother Earth Subterra Root Booster Liquid All Plants Plant Supplement 1 pt

MPN: HGC733944

$13.99
Mother Earth LiquiCraft Bloom All Plant 2-4-4 Plant Fertilizer 1 qt
USA

Mother Earth

Mother Earth LiquiCraft Bloom All Plant 2-4-4 Plant Fertilizer 1 qt

MPN: HGC733936

$22.99
Mother Earth Seasons Choice Vegetables 4-5-6 Fertilizer 4.4 lb
USA

Mother Earth

Mother Earth Seasons Choice Vegetables 4-5-6 Fertilizer 4.4 lb

MPN: HGC733954

$16.99
Mother Earth Liquid Floressence Bloom Plant Supplement 1 pt
USA

Mother Earth

Mother Earth Liquid Floressence Bloom Plant Supplement 1 pt

MPN: HGC733940

$15.99
Mother Earth LiquiCraft Grow All Plant 4-3-3 Plant Fertilizer 1 qt
USA

Mother Earth

Mother Earth LiquiCraft Grow All Plant 4-3-3 Plant Fertilizer 1 qt

MPN: HGC733932

$22.99
Mother Earth Power Flower Flowers/Fruits/Vegetables 1-8-6 Plant Fertilizer 4.4 lb
USA

Mother Earth

Mother Earth Power Flower Flowers/Fruits/Vegetables 1-8-6 Plant Fertilizer 4.4 lb

MPN: HGC733952

$16.99
Mother Earth Farmers Market All Plant 4-5-4 Plant Fertilizer 4.4 lb
USA

Mother Earth

Mother Earth Farmers Market All Plant 4-5-4 Plant Fertilizer 4.4 lb

MPN: HGC733953

$16.99
Mother Earth Root Down All Purpose Plant Starter 4.4 lb
USA

Mother Earth

Mother Earth Root Down All Purpose Plant Starter 4.4 lb

MPN: HGC733957

$16.99
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Try local first · we'll wait

The stores we send you to are local and independently run — often for generations, the kind of place where someone behind the counter knows the regulars. We don't own them. We just think they deserve the foot traffic. They can put most of what we sell on their next truck. Ask there before you check out here.

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Independent hardware retailer? Join the network →
About our directory. National Hardware Group is an independent retailer and directory. The local stores we list and link to are separately owned and operated — we have no ownership stake in any of them, and most pay us nothing to be included. That includes plenty of stores flying a familiar banner that people don't realize are locally owned and run, not operated by a corporation. Store owners can choose to upgrade their listing for an enhanced presence or pickup features, but the base directory is free, and inclusion is never a paid endorsement.

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