Nutrients & Additives

1872 products

  • Elite Garden Nutrients Master Kit - A Hydrofarm Exclusive!

    Elite Nutrients Elite Garden Nutrients Master Kit - A Hydrofarm Exclusive!

    Out of stock

    Elite Garden Nutrients Master KitThe Elite Master Kit has all 5 of Elite’s hero products that are guaranteed to help you grow strong, healthy plants. Elite's super-concentrated liquid formula is easy to use and works great in both commercial and consumer environments. When diluted this kit will mix over 360 gallons of solution (when following the recommended feed chart).Kit includes: (2) 32 oz Base Nutrient A(2) 32 oz Base Nutrient B(1) 32 oz Root Tonic C(1) 32 oz Resin D(1) 32 oz Root Igniter

    Out of stock

    $249.99

  • Emerald Harvest Cali Pro Grow B, 2.5 gal

    Emerald Harvest Emerald Harvest Cali Pro Grow B, 2.5 gal

    Out of stock

    Emerald Harvest Cali Pro Grow BCali Pro:USE CALI PRO PROFESSIONAL 2-PART NUTRIENT SERIES TO: Establish a simple, hassle-free yet complete feeding program. Get professional results for novice and expert growers alike. Feed simply—just measure and pour in equal portions. Spend less time measuring and tweaking the feeding program and more time harnessing the full genetic potential of plants with Cali Pro Grow A & B and Cali Pro Bloom A & B—Emerald Harvest’s easy-to-use 2-part base nutrient series. Cali Pro is a nitrogen-rich fertilizer that nourishes high-yield, indoor-grown crops with the essential elements they need to develop strong stalks and stems and support a robust harvest. Rich in nitrogen, phosphorus, potassium and other essential nutrients like calcium, magnesium and sulfur that plants need for vigorous fruiting and flowering, Cali Pro also contains trace elements such as chelated iron, cobalt, manganese and zinc .With Cali Pro’s simple feeding program—just measure and pour the A and B parts in equal portions—Emerald Harvest helps experts and novice growers alike achieve harvests anyone would be proud of. Use Cali Pro Grow A & B during the vegetative stage and Cali Pro Bloom A & B during flowering.

    Out of stock

    $87.00

  • Dyna-Gro Hydroponics Starter Kit

    Dyna-Gro Dyna-Gro Hydroponics Starter Kit

    Out of stock

    Dyna-Gro’s Dyna-HOME-GRO’N Starter Kit gives the small or new grower the first and only starter kit to include a grower’s manual and five products essential for optimum plant production.The Dyna-HOME-GRO’N Starter Kit includes: 1 8 oz of K-L-N Rooting Concentrate™ for roots, cuttings and transplants 1 quart (32 oz) of Pro-TeKt®, a supplement to help build strong plants and help to hold heavy yields 1 quart (32 oz) of Foliage-Pro®, the complete plant nutrition for the vegetative stage 1 quart (32 oz) of BLOOM™, the complete plant nutrition for the flowering stage 1 quart (32 oz) of Mag-Pro®, a flower booster supplement to enhance flavor, fragrance and color Also included in the Dyna-HOME-GRO’N Starter Kit is a copy of Beginner’s Guide to Cultivation by Dave Neal, Dr. Dyna-Gro Dyna-Gro measuring shot glass Dyna-Gro feed chart The Dyna-HOME-GRO’N Starter Kit makes your homegrown even better!

    Out of stock

    $77.99

  • Dyna-Gro Bonsai Pro 7-9-5 Plant Food, 8 oz

    Dyna-Gro Dyna-Gro Bonsai Pro 7-9-5 Plant Food, 8 oz

    Out of stock

    Bonsai Pro™ 7-9-5: Bonsai trees, like all other plants, require N-P-K plus all the other macro and micro nutritional elements to survive. While normal trees are able to broaden their root systems, bonsai are planted in small pots and benefit from frequent, weekly applications of Bonsai-Pro. Bonsai Pro offers balanced growth throughout the plant’s life, which can be affected by temperature, light, soil, pruning, watering, and root structure.Application Rates: Maintenance: Mix 1/4 tsp. per gallon of water. This is a stable mixture and does not have to be used all at once. Use this solution to water your bonsai and for misting the foliage. To Promote growth: For newly re-potted bonsai and all other container grown plants use 1/2 tsp. per gallon of water. Note: 1/2 tsp. per gal = 1:1500

    Out of stock

    $9.49

  • Coast of Maine Stonington Blend Organic Plant Food, 4 lb

    Coast of Maine Coast of Maine Stonington Blend Organic Plant Food, 4 lb

    Out of stock

    Stonington Blend™ Organic Plant Food Stonington Blend Plant Food (5-2-4)An exceptional granular fertilizer made with lobster, crab, fish and kelp meals, worm castings and other natural ingredients. A super charging fertilizer that improves plant vigor & yields. Mixed to ensure a consistent aggregate size. Uses: Fertilizer for containers, vegetable gardens, flower bedsGreat for replenishing soil between grows in your raised bed! Coast of Maine Organic Products Stonington Organic Plant Food is an exceptional granular organic fertilizer that will supercharge the biology of container gardens. It is made with lobster, crab, fish and kelp meal, plus worm castings and other natural ingredients. It is also high in calcium which helps promote plant vigor. It can be mixed into the soil for new beds or used to top dress existing plantings.It is OMRI listed for use in organic gardensAvailable in 4 lb bags.

    Out of stock

    $26.99

  • Coast of Maine Squid All Natural Liquid Plant Food 2-3-0, 1 qt

    Coast of Maine Coast of Maine Squid All Natural Liquid Plant Food 2-3-0, 1 qt

    Out of stock

    Squid ConcentrateAll Natural Plant Food for Indoor Plants(2-3-0) A truly remarkable fertilizer made entirely of squid. Intended to promote budding and blooming, this concentrated fertilizer also enriches the soil with plant-ready minerals, giving your plants a significant boost! Great for greenhouse and hydroponic systems and both indoor and outdoor applications. Made with 100% Natural Ingredients.Uses: For feeding all indoor house and tropical plants. Can also be used as a supplemental nutrient source when growing hydroponically. Can also be used outdoors on annuals, roses, perennials, vegetables, fruit, shrubs and trees.Coast of Maine Organic Products Liquid Squid Concentrate is a highly concentrated liquid fertilizer used to feed indoor house and tropical plants. It can also be used to supplement greenhouse and hydroponic crops as well as annuals, roses, perennials, vegetables, fruit, shrubs and trees outside. Once diluted, it can be watered-in or applied as a foliar spray. Made with 100% Natural Ingredients.

    Out of stock

    $24.99

  • Coast of Maine Lobster Meal Organic Plant Food 6-2-0, 4 lbs

    Coast of Maine Coast of Maine Lobster Meal Organic Plant Food 6-2-0, 4 lbs

    Out of stock

    Lobster Meal Organic Plant Food for Greening & Leafing (6-2-0) with 8% CalciumA fertilizer/amendment made of ground, dehydrated lobster shell. High in both natural nitrogen & calcium, it helps promote strong stem growth, green foliage and a strong root system. Great for new beds, planting holes or as a top dress. Uses: Fertilizer for outdoor container gardens, vegetable and herb gardens, flower beds, lawns Coast of Maine Organic Products Lobster Meal is a unique single-ingredient fertilizer, high in both natural nitrogen and calcium to help promote strong stem growth, healthy green foliage and a vigorous root system. It is made of ground, dehydrated lobster, with some crab shell mixed in. It can be mixed into the soil of new beds, placed in planting holes or used to top dress existing garden beds, container gardens, houseplants and lawns. It can also be used as a compost bio-activator.It is OMRI listed for use in organic gardens.

    Out of stock

    $20.99

  • Coast of Maine Kelp Meal Organic Plant Food 1-0-1, 4 lbs

    Coast of Maine Coast of Maine Kelp Meal Organic Plant Food 1-0-1, 4 lbs

    Out of stock

    Kelp Meal All Purpose Organic Plant Food (1-0-1) with 1% CalciumA fertilizer/amendment made from dehydrated and ground Kelp (seaweed) providing a valuable source of macro and micro-nutrients that promotes healthier plants and improved crop yields. Helps prevent shock and reduces stress in transplants. Uses: As a top dressing around trees and shrubs and houseplants. May also be sprinkled on lawns, mixed into garden beds or used in planting holes. It can also be made into a tea and use for watering or a foliar spray. Coast of Maine Organic Products Kelp Meal is a soil amendment providing a valuable source of macro- and micro-nutrients that promotes healthier plants and improved crop yields. It is made from dehydrated and ground Norwegian Kelp (Ascophyllum Nodosum).

    Out of stock

    $22.99

  • Coast of Maine Fish Bone Meal Organic Plant Food 5-13-0, 3 lbs

    Coast of Maine Coast of Maine Fish Bone Meal Organic Plant Food 5-13-0, 3 lbs

    Out of stock

    Fish Bone Meal Organic Plant Food for Buds & Blooms(5-13-0) with 18% CalciumAn exceptional organic fertilizer ideal for budding and blooming plants. Made from dehydrated fish bones, it is an excellent natural source of phosphorus, calcium, nitrogen, essential minerals and trace elements. Uses: For great results outdoors, apply in the spring after the weather warms.  Coast of Maine Organic Products Fish Bone Meal an exceptional organic fertilizer ideal for budding and blooming plants. A natural by-product of the processing of this catch and is made by dehydrating and grinding the bones into a meal. When used as a fertilizer, it is an excellent natural source of phosphorus, calcium and nitrogen. It is preservative-free and Coast of Maine uses it instead of traditional steamed bone meal for all of their fertilizer blends.It is OMRI listed for use in organic gardens.

    Out of stock

    $20.99

  • Aptus Believer Pack

    Aptus Aptus Believer Pack

    Out of stock

    Become a believer! Small pack of Fasilitor and Startboost 50 ml so you can see the results before investing in the larger sizes. The Aptus Believer Pack mixes 50 gallons. Use in early growth. The Aptus believer pack is designed to show the APTUS plant nutrients. Quickly, with little effort force Simple and complete plant nutrients for the intelligent grower. APTUS Plant Tech is a plant nutrition technology from the Netherlands. For more than 10 years of proven by top agricultural universities and applied in commercial agriculture in Europe. Aptus is now registered and available in the USA. CONTENT PACK BELIEVER:• Aptus Startboost 50 ml • Aptus Fasilitor 50 ml

    Out of stock

    $92.06

  • Aptus Ambassador Pack

    Aptus Aptus Ambassador Pack

    Out of stock

    Introducing the fastest way to experience the power of true plant science. The Aptus Ambassador Pack contains 3.4-oz. bottles of the entire Aptus line of grow and bloom additives. This compact pack will prepare up to 160 gal. of feed water. If you want to give Aptus a trial run, this is your chance to get started quickly and easily. What's Inside?Education Mini-ManualThe best product is worthless without proper knowledge. This mini-manual will get you on the tright track to growing successfully with Aptus.Fasilitor 100 mlContains the only bio-available form of silicon that supports better cell structure and the uptake of nutrients.Startboost 100 mlHighly concentrated organic formulation enhances soil structure, builds healthy micro-life populations, and gives young plants a faster and more robust start. Bloomboost 100 mlHighly concentrated organic-based formulation provides nutrients from L-amino acids and carbohydrates for your microlife.Peakboost 100 mlHighly bioavailable sources of phosphorus combined with L-amino acids to provide energy to your plants during the active bloom phase.  Finaleboost 100 mlAn excellent source of potassium and sulfur to help your plants finish strong and to optimize yields of flowers and fruits. Massboost 100 mlHighly concentrated blend of calcium and magnesium combined with L-amino acids to ensure rapid uptake and assimilation into your crop. Ecozen 100 mlMultiple enzyme complexes breakdown dead root material and excess salts to increase nutrient absorption and stabilize the growing medium.

    Out of stock

    $205.22

  • Azomite Pelletized Trace Minerals, 10 lbs

    Azomite Azomite Pelletized Trace Minerals, 10 lbs

    Out of stock

    AZOMITE® trace minerals have been reported to improve root systems, yields and general plant vigor in a variety of applications; from field crops and orchards to lawn and garden use. Azomite helps remineralize nutrient-depleted soils. Azomite has been mined in Utah for more than 60 years. It is100% naturally derived and is OMRI Listed for use in organic production and farming. Azomite is odorless and is ideal for blending with other fertilizers and amendments to help meet a plant's nutritional needs. Conventional fertilizer programs focus on the macronutrients like Nitrogen (N), Phosphorus (P) and Potassium (K). However, if one of the many essential trace elements is deficient in the soil, the plant will not perform at its optimum, affecting yield and immune function. Azomite replenishes these essential trace minerals through a 100% naturally derived source.  

    Out of stock

    $22.95

Nutrients & Additives

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