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UltraBio - Mycorrhizae, Beneficial Bacteria, Bio-inoculant + Amino Acids & Peptides + Humates

Ultimate biostimulants & biological inoculant for soil health

from $29.00

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Cytoplex - Plant Hormone Supplement, kelp, auxins, gibberellic acid (1 Gal.)

Natural plant hormone growth regulator

$178.00

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Peptide SP, 13% N, Protein Hydrolysate, Amino Acid, Peptide Biostimulant

Protein biostimulant with available organic nitrogen

from $24.00

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Cytokin - Natural plant growth regulator, sea plant extracts (1 Gal)

Natural seaweed-based growth regulator

$169.50

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SeaBio K-14%, Soluble Seaweed Extract, biostimulants, water soluble

Premium seaweed extract with 14% potassium plus amino acids

from $22.00

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HumuSoil- Humic acid, Fulvic acid, from leonardite soluble powder

Restore your soil with 80% humic acid soil conditioner

from $22.00

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Granulated UltraBio, Soil Microbes, Humic Acid, 2lb Shaker

Natural Biologicals + Calcium and Humates for Healthy Soil

$29.00

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CropSIL - silicon (Si) based biostimulant, (32oz)

Supercharge your spray medium

$98.70

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StressAid 7-0-4 protein hydrolysate biostimulant, humic/fulvic acid, seaweed extract

All-in-one stress management biostimulant

from $24.00

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CropSil - silicon (Si) based biostimulant. (8oz)

Supercharge your spray medium

from $29.99

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GrowRite Garden Hose Water Filter- high-quality filtered water free of contaminants.

Inline filter removes contaminates, protects microbes

$49.00

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Proven Products Growers Trust Most

At HardyGro, we don’t just feed plants—we feed the soil. Our agricultural biostimulants, bio-fertilizers, and microbial soil amendments are designed to help farmers and specialty crop growers improve soil health, increase nutrient efficiency, and boost yields—all while reducing reliance on synthetic inputs. We combine cutting-edge soil biology with proven organic processes to support sustainable, regenerative farming systems. Whether you're growing vegetables, row crops, orchards, or greenhouse plants, HardyGro delivers powerful microbial inoculants and soil conditioners that activate root zones, restore microbial balance, and help crops thrive under stress.

Why Growers Choose HardyGro

Proven performance across all growing systems and soil types
Address the most common grower challenges effectively
Compatible with organic, regenerative, and conventional programs
Consistent results in real field and greenhouse conditions
Work with existing fertility programs and application equipment

Start with what growers trust. Start with products that deliver reliable biological performance season after season.