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Nutrient Additives and Plant Stimulators

Home / Hydroponic & Organic Gardening / Fertilizer and Plant Food / Nutrient Additives and Plant Stimulators

Atami Atami Bloombastic 325mL/11 oz

The Bloombastic formula contains biological minerals in combination with biological stimulants to create a one of a kind nutrient additive specifically designed for the flowering and ripening of your plants. The unique combination of elements in Blombasti

Atami Bloombastic 325mL/11 oz

$95.43

General Hydroponics GH Koolbloom 2.2 lb Pouch

Dry KoolBloom by General Hydroponics is a concentrated plant food supplement specifically formulated to promote intense and abundant flowering. It is designed to enhance the production of robust blooms as well as essential oils and fragrance in many flowe

GH Koolbloom 2.2 lb Pouch

$34.58

Flex FLEX Liquid H202 (34% Hydrogen Peroxide) - 1 Gal

Hydrogen Peroxide (H2O2 34%) is an excellent product for cleaning hydroponic equipment, materials and grow areas.

FLEX Liquid H202 (34% Hydrogen Peroxide) - 1 Gal

$15.59

Plant Success Plant Success Great White Mycorrhizae 4 oz

The endo and ecto mycorrhiza, beneficial bacteria and trichoderma build a microbial system in and on plant roots which enhance water and nutrient uptake. Great White can be used in hydroponics, field agriculture or home gardening. It is best used as a see

Plant Success Great White Mycorrhizae 4 oz

$39.99

South Cascade Organics SLF-100 Qt

SLF-100 Enzymatic Formula 1 quart (32oz) bottle

$35.99

Down To Earth Down To Earth Rose and Flower Mix (4-8-4) - 5 lb

Down To Earth Rose & Flower Mix is outstanding for all types of roses, bulbs, flowering shrubs and even onions and garlic. Apply when planting new roses, bulbs and perennials and use throughout the season when new growth appears on existing plants.

Down To Earth Rose and Flower Mix (4-8-4) - 5 lb

$11.79

Power Si - 250 ml

The original, patented form of stabilized, bioavailable silica for plants. Often imitated never duplicated. Unlike other silica products, we work with the best possible silica matrix (patented) to enable superior absorption. Power Si is a proprietary m

Power Si - 250 ml

$75.00

Fish Head Farms Fish Sh!t Organic Soil Conditioner - 120 ML

By introducing a wide variety of beneficial bacteria and microorganisms in to the rhizosphere, Fish Sh!t creates an optimal symbiotic relationship between plant and soil.

Fish Sh!t Organic Soil Conditioner - 120 ML

$26.50

$19.99

PRO-MIX PRO-MIX Organic Seed Starting Mix with MYCOACTIVE - 16qt

Formulated with quality approved-organic ingredients. Contains an organic fertilizer that gradually feeds plants. Provides easy plant-care for improved seedling performance. Ideal for germinating vegetables, flowers, herb seeds, as well as starting stems

PRO-MIX Organic Seed Starting Mix with MYCOACTIVE - 16qt

$13.99

Plant Success Plant Success Great White Mycorrhizae 1 oz

The endo and ecto mycorrhiza, beneficial bacteria and trichoderma build a microbial system in and on plant roots which enhance water and nutrient uptake. Great White can be used in hydroponics, field agriculture or home gardening. It is best used as a see

Plant Success Great White Mycorrhizae 1 oz

$13.99

General Hydroponics GH pH Down - Qt

For plants to grow their best, it's important that the nutrient pH be slightly acidic - the range of 5.5 to 6.5 is considered ideal for most crops. Our own pH Down is made with phosphoric acid. There are many pH down products on the market, but you get mo

GH pH Down - Qt

$12.67

General Hydroponics GH Maxibloom 2.2 lb Pouch

MaxiBloom (5-7-18) is a powerful one-part dry nutrient users add during a plant's reproductive stage to produce higher yields by stimulating flowering and fruiting. MaxiBloom works for a wide variety of plants in both traditional and hydroponics growing.

GH Maxibloom 2.2 lb Pouch

$19.13

Power Si Bloom- 500 ml

Specialized quality enhancing flowering additive with bioavailable silica.

Power Si Bloom- 500 ml

$75.00

Maxicrop Maxicrop Liquid Seaweed - gal

The natural growth stimulants in Maxicrop's basic pure seaweed extracts initiate cell growth and cause vigorous growth of both root and stem. The trace elements that Maxicrop Liquid Seaweed contains are important at this stage—in enzymes, as activators of

Maxicrop Liquid Seaweed - gal

$31.25

Plant Success Plant Success Orca - 100 ml

Premium Liquid Mycorrhizae with Beneficial Bacteria. Orca is a highly concentrated LIQUID mycorrhizal and beneficial bacteria product. It brings together 4 highly effective endo mycorrhizal species with 14 super effective bacteria strains. This all-in-one

Plant Success Orca - 100 ml

$8.99

Neptunes Harvest Neptune's Harvest Seaweed Plant Food Gallon

Neptune’s Harvest Seaweed Plant Food is made from Ascophyllum Nodosum that grows along the cold North Atlantic ocean floor. Recommended for use as an addition to a regular program of Neptune’s Harvest Fish Fertilizer. Use this plant food on all your plant

Neptune's Harvest Seaweed Plant Food Gallon

$39.99

Nectar For The Gods Nectar for the Gods One Shot 50 lb

One Shot is a soil amendment for super soil style gardening. One Shot is a blend of natural ingredients that are ground into fine powders and held together with a molasses binder in small pellets. The molasses activates and encourages microbial activity i

Nectar for the Gods One Shot 50 lb

$112.20

Humboldt County's Own G10 - Qt

This product is made up of a proprietary kelp extract and is a "flower finisher." The claims however are extremely vague. Start using this from the 3rd week of flowering all the way to the end. Does not contain Plant Growth Regulators(PGRs)

Humboldt County's Own G10 - Qt

$60.81

Atami Atami Bloombastic 1.25 L/42.3 oz

The Bloombastic formula contains biological minerals in combination with biological stimulants to create a one of a kind nutrient additive specifically designed for the flowering and ripening of your plants. The unique combination of elements in Blombasti

Atami Bloombastic 1.25 L/42.3 oz

$222.74

Fish Head Farms Fish Sh!t Organic Soil Conditioner - 1 Liter

By introducing a wide variety of beneficial bacteria and microorganisms in to the rhizosphere, Fish Sh!t creates an optimal symbiotic relationship between plant and soil.

Fish Sh!t Organic Soil Conditioner - 1 Liter

$130.00

$101.25

Plant Success Plant Success Orca - 16oz

Premium Liquid Mycorrhizae with Beneficial Bacteria. Orca is a highly concentrated LIQUID mycorrhizal and beneficial bacteria product. It brings together 4 highly effective endo mycorrhizal species with 14 super effective bacteria strains. This all-in-one

Plant Success Orca - 16oz

$39.95

Down To Earth Down to Earth Granular Humic Acid 5 lb

A highly concentrated source of humic acids ideal for use on fields, turf and vegetable gardens. Derived from the ancient remains of decomposed organic plant materials, humic acids enhance nutrient uptake and stimulate soil microbial life. Naturally occur

Down to Earth Granular Humic Acid 5 lb

$10.29

Plant Success Plant Success Great White Mycorrhizae 8 oz

The endo and ecto mycorrhiza, beneficial bacteria and trichoderma build a microbial system in and on plant roots which enhance water and nutrient uptake. Great White can be used in hydroponics, field agriculture or home gardening. It is best used as a see

Plant Success Great White Mycorrhizae 8 oz

$71.99

Canna Canna Bio Boost 1L

BioBOOST by BIOCANNA is a natural additive that promotes bigger blooms and stronger flavors in flowers to create a high-quality yield. BioBOOST enhances the rate plants absorb nutrients, and is to be used during the start of the blooming period. BioBOOST

Canna Bio Boost 1L

$99.62