20 Best Liquid Fertilizers of 2023 – Romance University
After hours researching and comparing all models on the market, Romance University finds out the Best Liquid Fertilizers of 2023. Check our ranking below.
2,036 Reviews Scanned
Rank No. #1
Triple 10 All Purpose Liquid Fertilizer 10-10-10 with Amino Acids (5.5%) & Seaweed Extract (32oz)
- ALL PURPOSE: 10-10-10 with Aminos (5.5%) & Seaweed Extract is a generic liquid fertilizer designed for all stages of plant growth.
- USE SITES: Great for gardens, flowers, fruits, vegetables, turf grasses etc. Is suitable for indoor & outdoor use
- USAGE RATES: 1-2 oz per gallon of water (it's better to start at a lower rate and work your way up) | Water generously & continue use every 1-2 weeks
- HIGH CONCENTRATE: Makes up to 32 gallons of fertilizer
- MEASURE & POUR: Comes in an easy measure and pour bottle that allows the end-user to measure and pour a specific dosage by simply squeezing the bottle. See images for directions.
SaleRank No. #2
FoxFarm Liquid Nutrient Trio Soil Formula: Big Bloom, Grow Big, Tiger Bloom (Pack of 3-16 oz Bottles) + Twin Canaries Chart
- Get your garden going with FoxFarm Grow Big, our liquid concentrate fertilizer that supports lush vegetative growth.
- FoxFarm Big Bloom Liquid Plant Food is formulated for use on all plants and can be used every time you water. OMRI Listed and Registered CDFA Organic Input Material.
- FoxFarm Tiger Bloom is a phosphorus fertilizer that contains nitrogen to support vigorous growth. FoxFarm Tiger Bloom is designed to encourage abundant fruit, flower and multiple bud development.
- FoxFarm Big Bloom, FoxFarm Grow Big, and FoxFarm Tiger Bloom, together at last. Designed to work together to support vigorous growth, multiple bud development and abundant fruit.
- Twin Canaries Conversion Chart included with every order.
Rank No. #3
MARPHYL Organic Liquid Fertilizer - Outdoor & Indoor Plant Food - All-Purpose, Nutrient-Rich Lawn Fertilizer & Soil Enhancer for House Plants, Flowers, Vegetables, Succulents, Bamboo, Hydroponics
- SUPERIOR INDOOR PLANT FERTILIZER - MARPHYL Marine Phytoplankton is ideal as an outdoor and indoor plant fertilizer. It's an excellent vegetable fertilizer, houseplant fertilizer, and lawn fertilizer. It's great for your garden, greenhouse, and hydroponics. Enjoy gorgeous, colorful blooms with this exceptional flower food. Enhance soil quality and watch your trees, shrubs, vines, grass, plants, flowers, and vegetables thrive.
- NATURAL INDOOR PLANT FOOD - Marine Phytoplankton are Microalgae full of nutrients, vitamins, and minerals. It's so much more than your average liquid plant fertilizer. MARPHYL's fertilizer for indoor plants and outdoor plants, grasses, trees, flowers and more, provides an astounding array of nutritional elements. Packed with vitamins, minerals, essential fatty acids, DHA, EPA, amino acids, chlorophyll, and a vast spectrum of phytochemicals, so your lawn, garden, and greenhouses will flourish
- ORGANIC & SUSTAINABLE - Our Liquid Marine Phytoplankton Soil Enhancer is an organic, all purpose plant food that is harvested 100% naturally. It's vegan, non-toxic, non-GMO & sustainably made with no preservatives making it safe for vegetable gardening, ground water, and pets. It replenishes your soil on a regular basis to ensure the continued growth and beauty of your vegetation. Our organic plant fertilizer will meet your every need and provide a safe environment for all gardening.
- MIRACULOUS & BENEFICIAL - Found in oceans across the world, marine phytoplankton are micro algae that infuse your plants, trees, grasses, and more with everything they need for health and longevity. High in potassium, nitrogen, and phosphorus as well as calcium and magnesium for lush foliage. Your lawn & garden will be the envy of the neighborhood, and your indoor plants will brighten your home.
- EASY TO USE WATER SOLUBLE FERTILIZER - Simply mix a 1:20 ratio of our liquid plant fertilizer with water. Once in the water, stir, and then pour onto the plants. Perfect for use in small and large sprayers. Recommended use is every two weeks. You'll see the difference after just one application!
Rank No. #4
Espoma Organic 8 Ounce Concentrated Tomato! Plant Food - Plant Fertilizer For all Types of Tomatoes and other Vegetables. For Organic Gardening. Pack of 1.
- ORGANIC PLANT FOOD: This liquid fertilizer for tomatoes & vegetables provides nutrients to ensure superior results and is safe to use around kids and pets
- EASY: Simply add ½ cap of Tomato! plant food liquid per quart of water and water your plants. Thoroughly drench the soil of the plant. For best results use every 2-4 weeks
- CONTAINS: Essential plant nutrients to help all tomatoes and vegetables thrive. See label for all ingredients
- FAST RESULTS: Espoma Organic Tomato will help you grow vigorous and productive plants in a container or in the garden
- FOR ORGANIC GARDENING: Tomato! is approved for organic gardening; It is a registered Organic Input Material meaning it meets all requirements for organic production
Rank No. #5
Easy Peasy Liquid All Purpose Indoor Plant Food | 4-3-4 Nutrient Fertilizer for Indoor Potted Plants | Specifically Formulated for Live Houseplants
- Plant fertilizer specifically formulated for indoor potted plants to ensure your houseplants thrive with deep green plant growth
- Indoor plants especially house plants deserve plant food fertilizer that delivers nutrients that matter to the health of your plants. Our high concentrate 4-3-4 lasts much longer than other product
- We use the highest quality ingredients to produce this liquid fertilizer for indoor plants. This house plant fertilizer contains a balanced 4-3-4 nutrient blend.
- Easy to use 1 teaspoon of Easy Peasy Indoor Plant Food with a minimum of 2 cups of water will provide enough house plant fertilizer for many live houseplants
- REDUCE WASTE: Easy Peasy Plants Indoor Plant Food high concentrate indoor plant food provides indoor plant fertilizer for more houseplants than any other competitor
Rank No. #6
AgroThrive All Purpose Organic Liquid Fertilizer - 3-3-2 NPK (ATGP1128) (1 Gal) for Lawns, Vegetables, Greenhouses, Herbs and Everything Else that Grows
- Organic results in less than 1 week
- OMRI, CDFA and WSDA listed for organic gardening; No synthetic chemicals EVER
- 3-3-2 NPK General Purpose liquid organic fertilizer; Formulated for lawns, vegetables, greenhouses, herbs and everything else that grows; Derived from organic fish and grain
- Produced by The Progressive Digestion Process which breaks down all organic ingredients down to a simple molecular structure plants can quickly absorb
- Activates soil and helps nutrient release; release speed: 70% fast-release, 30% slow-release
Rank No. #7
Fox Farm FX14092 Grow Big Liquid Concentrate Fertilizer, Soil NPK 6-4-4, 1 Pint
- Get your garden going with grow big, Foxfarm's liquid concentrate fertilizer for lush vegetative growth.
- Grow big contains earthworm castings, Norwegian kelp and essential micronutrients. Foxfarm's special brew is designed to enhance plant Size and structure, allowing for more abundant fruit, flower and bud development.
- Garden tip: allow new plantings a few days to settle in, then begin using at the rate of two teaspoons per gallon of water every other time you water. You can also use grow big for foliar feeding, applying to both sides of leaves, preferably early in the morning. At the first sign of flowering, switch to one of foxfarm’s blooming fertilizers. For best results, refer to the FoxFarm feeding schedule.
- Country Of Origin: United States
Rank No. #8
Pendelton Turf Supply 18-3-6 Liquid Fertilizer (50% SRN & Micronutrients) (2.5 Gallons)
- BENEFITS: All purpose fertilizer designed to be used throughout the growing season that provides readily available nutrients AND extended, long lasting nitrogen (Product contains 50% SLOW RELEASE NITROGEN (SRN))
- BONUS: Micro-nutrients aid in plant growth, aesthetic appeal, and overall plant health.
- DIRECTIONS FOR ORNAMENTALS: Mix 1-2 oz of fertilizer to 1 gallon of water and water plants generously. Use fertilizer once every two weeks. DIRECTIONS FOR TURF: Use 3 oz. of fertilizer for every 1000 sq. ft. Mix in a spray tank at ratio of 1-3 oz per gallon of water. Fertilize once every 2-4 weeks.
- GUARANTEED ANALYSIS: 18% Nitrogen | 3% Available Phosphoric Acid | 6% Soluble Potash | .05% Copper .1% Iron .05% Manganese .05% Zinc
SaleRank No. #9
Espoma Organic 8 Ounce Concentrated Indoor! Plant Food - Indoor Plant Fertilizer for Large & Small Plants Like Pothos, Fiddle Leaf Fig, Monstera, Snake & Palms
- ORGANIC PLANT FOOD: This liquid fertilizer for indoor plants provides organic nutrients to ensure superior results and is safe to use around kids and pets.
- EASY: Simply add ½ cap of indoor plant food liquid per quart of water and water your plants. Thoroughly drench the soil of the plant. For best results use every 2-4 weeks.
- CONTAINS: Essential plant nutrients to help houseplants thrive. Liquid plant food is a vital part of indoor plant care, even for little plants. See label for all ingredients.
- FAST RESULTS: Espoma organic fertilizer for indoor plants will help you grow vibrant, larger house plants while encouraging new growth & the development of a strong root system in a potted plant.
- USE: Organic plant fertilizer specifically formulated for large and small house plants like a Fiddle leaf fig tree, a Monstera Plant, a Snake Plant, a Pothos Plant or a Palm plant.
Rank No. #10
Rank No. #11
Organic Liquid Seaweed and Kelp Fertilizer Supplement by Bloom City, Quart (32 oz) Concentrated Makes 180 Gallons
- FULLY ORGANIC SEAWEED AND KELP: A seven species blend of Ascophyllum Nodosum, Palmaria Palmata, Ecklonia Maxima, Laminaria Saccharina, Chlorella Vulgaris, Arthrospira Platensis, and Chondrus Crispus.
- EXTRACTED TO PROTECT NATURAL ENZYMES: Clean Kelp’s unique processing techniques give the cleanest possible kelp extract. Get all the benefits of natural kelp enzymes and hormones without the non-nutritious fibrous pulp that gives other kelps their thick, brackish appearance. You can see the difference.
- SIMPLE AND SAFE TO USE FOR ALL PLANTS: Add to every watering, it’s that easy. No risk of over application, plants love kelp. Clean Kelp aids in every stage of growth for root and stem health.
- FOR BOTH PLANTS AND LAWNS: Add Clean Kelp to all of your houseplants, vegetable garden, and your lawn for healthy green plants.
- FORMULATED AND MADE IN THE USA: Designed by botanists and plant chemists. Bloom City chooses only the highest quality ingredient sources and manufacturing methods to create the world’s best craft growing nutrient systems
SaleRank No. #12
Schultz All Purpose Liquid Plant Food 10-15-10, 8 oz
- For all flowers tomatoes roses vegetables fruits trees and shrubs annuals perennials and houseplants
- Model Number: SPF45170
- Country Of Origin: United States
- Item Package Weight: 14.6 oz
SaleRank No. #13
Maximum Green & Growth Fertilizer High Nitrogen 28-0-0 Liquid Lawn Food Spray Spring & Summer- Any Grass Type- Simple Lawn Solutions - Concentrated Quick & Slow Release Attached Sprayer (32 Ounce)
- Easy to Use: Our 28-0-0 Lawn Fertilizer Food comes with an attached sprayer that applies the perfect ratio of product for lawn applications. Covers up to 3,200 square feet, when using the attached sprayer
- Liquid Fertilizer 28-0-0 contains 28% Nitrogen. Nitrogen is a major component of chlorophyll where lawns get their green coloring. Nitrogen encourages growth for a dense attractive lawn
- The Power of Quick Release and Slow Release Nitrogen Fertilizer: 70% quick-release nitrogen to provide quick nutrient absorption 30% slow-release nitrogen keeps your lawn fed in between applications
- Can Be Used on All Grass types: Including Bermuda, St. Augustine, Zoysia, Buffalo, Centipede, Florida Palmetto, Bahia, Fescue, Ryegrass & Kentucky Bluegrass.
- High Nitrogen Formula: This High Nitrogen fertilizer was developed to perk up the lawn, by quickly correcting a Nitrogen deficiency. Nitrogen Encourages Greening & Growth if a nutrient deficiency is present
Rank No. #14
Miracle-Gro Pour & Feed Plant Food (Liquid), 32 fl. oz
- Ready-to-use plant food, no mixing required
- No mixing with water - simply apply directly to the soil
- Instantly feeds all potted plants
- Feed every 1-2 weeks
- For indoor and outdoor container plants
Rank No. #15
Organic Kelp Fertilizer by GS Plant Foods - Omri Listed(1 Gallon) - Liquid Kelp Concentrate for Gardens, Lawns & Soil Yields 800+ gallons
- OMRI ORGANIC LISTED SEAWEED & KELP FERTILIZER: Liquid Kelp is a natural plant food that provides a range of benefits for plant health and nutrition. OMRI listed for organic use, GS Plant Foods Liquid Seaweed Fertilizer is a completely natural, seaweed extract fertilizer for plants. Our liquid seaweed will optimize soil conditions for greater root mass and improve nutrient uptake. It can be applied without concern for harmful chemicals or nutrient loss to the environment.
- ONE OF NATURE’S ‘MIRACLE’ PLANT FOODS: Made from the finest seaweed plant Ascophyllum Nodosum, this is one of nature’s miracle plant foods. Our seaweed extract improves your plant’s tolerance to excessive heat, wind, drought conditions and more. It increases and stabilizes chlorophyll in plants, which results in darker green leaves and increased sugar content in plants.
- IMPROVES OVERALL PLANT NUTRITION AT HOME OR COMMERCIALLY: GS Plant Foods sea kelp fertilizer is used extensively on a commercial basis, as well as at home for gardeners as an organic soil conditioner. Using GS Plant Foods seaweed plant fertilizer will lead to improved nutrient uptake and general plant wellbeing.
- EASY TO APPLY FOR NATURAL GREAT RESULTS: Apply liquid kelp to improve growing conditions in all growth stages. To use, simply mix 2 ounces of this liquid fertilizer concentrate organic into a gallon of water and apply. Each gallon of this mixture will then cover as much as 1,000 sq ft. Any sprayer will work, but for large areas, the hose end sprayer is easiest! This liquid kelp should be sprayed in the morning or late afternoon when temperatures are lower, and the leaves stoma are open.
- TRUSTED & RELIABLE: At GS Plant Foods, we understand that you are placing your trust in us to provide you with the highest quality organic seaweed fertilizer products available. We have 100% confidence in the quality of our products and continuously strive to deliver the best customer experience. Our products are organic, easy to use, cost efficient, sustainable, and yield consistent & amazing results in your garden, no matter what you're growing or what medium in which your plants are growing.
SaleRank No. #16
Miracle-Gro LiquaFeed All Purpose Plant Food Advance Starter Kit, One Bottle of Plant Fertilizer and One Feeder
- Grow plants twice as big compared to unfed plants with the Miracle-Gro LiquaFeed All Purpose Plant Food Advance Starter Kit
- Feeding is as easy as watering - just attach a bottle of LiquaFeed All Purpose Plant Food to the LiquaFeed Feeder which easily connects to a garden hose
- Apply our liquid fertilizer to the soil surrounding the base of the plant every 7-14 days for the best results
- LiquaFeed All Purpose Plant Food can be used to feed all types of in-ground or container live plants, including flowers, vegetables, trees, and shrubs
- Includes one 16 oz. bottle of Miracle-Gro LiquaFeed All Purpose Plant Food and the LiquaFeed Feeder
Rank No. #18
Liquid Seaweed for Plants (32 oz) Quart | Concentrated Liquid Kelp Supplement | MAKES UP to 470 GALLONS | for All Plants & Gardens | Blue Planet Nutrients
- SEAWEED USABLE BY PLANTS: Derived from organic Ascophyllum Nodosum Seaweed which naturally contains carbohydrates, micro-nutrients, and organic matter!
- ALL VARIETIES OF PLANTS WILL BENEFIT: Such as citrus, fruit trees, garden vegetables and herbs, houseplants, succulents and cacti, flowers, shrubs, and so much more!
- FORMULATED FOR ALL TYPES OF GARDENS/GROWING MEDIA: Can be used in soil, hydroponic, coco coir, rockwool, clay pellets, aeroponic gardens etc.
- THE POWER OF SEAWEED IN A BOTTLE: Our Liquid Kelp supplement helps overall plant vitality for all varieties of plants growing in any type of garden!
- TRUSTED BRAND: Blue Planet Nutrients wants you to succeed so our products are specially formulated for success in the garden!
Rank No. #19
PetraTools Liquid Nitrogen Fertilizer, 28-0-0 High Liquid Nitrogen Spray For All Grass Types, Liquid Lawn NPK Fertilizer Concentrate For Max Green Grass, Liquid Fertilizer for Lawns & Plant Food (32 Oz)
- ULTIMATE LIQUID NITROGEN FERTILIZER: This liquid lawn food supplement has an ultra-high nitrogen formula to promote green grass and quick growth. Easily turn yellow & nitrogen deficient grass into a lush thick green!
- 28-0-0 QUICK & SLOW RELEASE TECHNOLOGY: This 2-in-1 liquid lawn fertilizer formula provides 70% quick-release nitrogen for rapid green and growth and 30% slow-release nitrogen for ongoing growth between applications.Get the best of both worlds in 1 easy application.
- WORKS WITH ALL GRASS TYPES: Whether you have warm- or cold-season grass, this is the perfect liquid grass food for quick green-up. It's super-effective in making your lawn green and to achieve consistent growth. Ideal for both new and old lawns.
- Apply Nitrogen to Your Lawn Quickly: PetraTools created our NPK lawn booster to be simple and easy to use. Mix 5oz of liquid nitrogen per gallon of water for maintenance or 10 oz per gallon to correct nitrogen levels. Treats up to 12,800 Sq. Ft. for maintenance or 6,400 Sq. Ft. of nitrogen deficient grass. For best results, use a PetraTools sprayer to evenly spray mixture across lawn.
- American Family-Owned Company & USA Support: PetraTools is a USA-based company located in Carlisle, Pennsylvania. All PetraTools products have a 100% satisfaction guarantee and excellent USA customer service members waiting by the phones to answer any questions you may have. PetraTools continues to work hard to deliver top-quality sprayers & solutions to keep your home, lawn, and places of business clean, green, and safe.
SaleRank No. #20
Scotts Liquid Turf Builder with Plus 2 Weed Control, Liquid Weed Killer and Fertilizer, 32 fl. oz.
- Scotts Liquid Turf Builder with Plus 2 Weed Control kills listed weeds, all while giving your lawn a quick boost of nitrogen
- Liquid weed killer plus fertilizer controls dandelion, clover, ground ivy, henbit, chickweed, plantain, poison ivy, and other broadleaf weeds as listed
- Apply this ready-to-spray when weeds are actively growing
- This lawn care product is for use on Bluegrass, Fescue, Ryegrass, Bahiagrass, Common Bermudagrass, Centipedegrass, and Zoysiagrass
- Simply connect Scotts Liquid Turf Builder with Plus 2 Weed Control to a garden hose, turn on water, and spray
Last update on 2023-08-02 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API
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