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Top 10August 2025

Best Organic House Plant Fertilizer

We made a list of the top 10 Organic House Plant Fertilizer based on verified reviews, popularity and other factors which we summarized for you in this list.

Best Choice

Purived 16oz All-Purpose Liquid Plant Fertilizer - Makes 50 Gallons, for Indoor Houseplants, All-Natural, Groundwater Safe, Made in USA

Purived 16oz All-Purpose Liquid Plant Fertilizer - Makes 50 Gallons, for Indoor Houseplants, All-Natural, Groundwater Safe, Made in USA

✓Best value, one bottle makes 50 gallons of nutrient rich, odorless fertilizer that feeds instantly
✓Easy to use & feeds instantly. Just mix a cap full of Purived Plant Food to 1 gallon of water & feed
✓All-purpose, nutrient rich formula designed to feed indoor & outdoor potted plants
✓Formulated for all types of feeding methods: soil drench, foliar feed, full & semi hydroponics
✓Purived Plant Food has a 2 year shelf life

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FoxFarm - Big Bloom Plant Food, Liquid Fertilizer Concentrate for Flowers, Fruits, and Vegetables, All Purpose Plant Fertilizer for Indoor & Outdoor Potted Plants, NPK 0-0.5-0.7 (Pint)

FoxFarm - Big Bloom Plant Food, Liquid Fertilizer Concentrate for Flowers, Fruits, and Vegetables, All Purpose Plant Fertilizer for Indoor & Outdoor Potted Plants, NPK 0-0.5-0.7 (Pint)

✓Big Blooms Start with Big Bloom: Achieve vibrant, healthy blooms with our big bloom liquid plant food, specially formulated to provide your plants with essential nutrients for robust growth in flowers, fruits, and vegetables
✓Formula: Our liquid plant fertilizer delivers essential nutrients without harmful chemicals. Its unique micro-brewed formula includes earthworm castings, bat guano, & other high-test ingredients, ensuring a full range of nutrients
✓Strengthens Roots and Boosts Flavor: Our outdoor and fertilizer for vegetable garden enhances root development, intensifies flower fragrance & increases essential oil production, leading to stronger flavors in herbs, fruits & vegetables
✓Versatile Use: Our bloom fertilizer is ideal for all flowering and fruiting plants, including flowers, vegetables & herbs. Safe for regular use, it provides all the essential nutrients whether you're nurturing a garden or growing potted plant
✓Easy to Apply: This FoxFarm liquid fertilizer mixes effortlessly with water. Simply add the concentrate to your watering can and nourish your plants as you water. This convenient method ensures that your plants receive the nutrients without any hassle

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Organic Sea Kelp Fertilizer for Plants – Water-Soluble – Makes 50 Gallons – Kelp Meal Concentrate Plant Food – for Indoor Gardens, Hydroponics, Vegetables, Houseplants - Smart Grower - 2oz Bag

Organic Sea Kelp Fertilizer for Plants – Water-Soluble – Makes 50 Gallons – Kelp Meal Concentrate Plant Food – for Indoor Gardens, Hydroponics, Vegetables, Houseplants - Smart Grower - 2oz Bag

✓Organic Bio-Active Seaweed Harvested From Maine, USA - Smart Grower Sea-Kelp (Ascophyllum Nodosum) is boosted with rich source of naturally-derived organic polymers (fucoidan, alginate, and tannins) for maximum plant growth with NPK: 0-0-18 Soluble potash for enhanced nutrient uptake in plants
✓6X Stronger Super-Concentrated Powder - 2 oz pouch makes up to 50 gallons of highly water soluble powder mixable liquid kelp fertilizer for large and small indoor gardens, vegetable beds, and hydroponics and houseplants this is the best value on the market
✓Healthier Bigger Plants Fast - Our Cold-Water Harvested in Maine Sea-Kelp plant food will boost your garden health and plant root strength because this organic kelp fertilizer supports natural plant stress resistance and maximum nutrient efficiency in all plant growing systems.
✓Fast Results Proven and Trusted Organic Fertilizer - Thousands of farmers and gardeners use Smart Grower Sea-Kelp Meal Fertilizer to boost plant health for houseplants, vegetables, flowers, and hydroponic systems including seedlings and mature crops to get larger yields and bigger plants
✓Easy-to-Use, and Compatible with Nutrients - Smart Grower Sea-Kelp fertilizer is fast-dissolving and easy to mix with water, simply apply every 1 to 2 weeks for stronger plants and bigger yields for all types of plants, gardens, and growing mediums
✓Cruelty-Free, Organic, Small Batch, Non-GMO, Responsibly Harvested Sea-Kelp Plant Food All Smart Grower products are made in small batches to help restore the poisoned ecosystem of this planet for the optimal health of people, plants, and our planet

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Organic Plant Magic - Truly Organic™ Fast-Acting Water Soluble Plant Food - All-Purpose Fertilizer Concentrate for Flower, Vegetable, Herb, Fruit Tree, Garden & Indoor Houseplants [One 1/2 lb Bag]

Organic Plant Magic - Truly Organic™ Fast-Acting Water Soluble Plant Food - All-Purpose Fertilizer Concentrate for Flower, Vegetable, Herb, Fruit Tree, Garden & Indoor Houseplants [One 1/2 lb Bag]

Organic Plant Magic

✓New Package - Same Amazing Product that Plants & Customers LOVE!
✓EASY & ALL PURPOSE - Simply grow healthy plants and beautiful gardens... Just add directly to seed, soil, transplant roots, existing plants, or mix with normal watering. Works for everyone, every plant, everywhere, every time!
✓A LITTLE GOES A LONG WAY - 1/2 lb bag makes 32+ gallons or treats up to 1,000 sf of soil or plants. Provides benefits of compost and advanced nutrition that builds healthy nutritious living soil and feeds plants continuously on-demand.
✓AMAZING GROWTH, COLOR, & FLAVOR - Empower your plants to express their full genetic potential. Get intense leaf, flower, fruit, veggie and herb production. Grow more vibrant color and flavor than ever before.
✓BIOLOGY OVER CHEMICALS - This unique versatile powder is packed with every essential plant nutrient, plus 55+ trace minerals, amino acids, humic acids, kelp, and beneficial GroBiotics including mycorrhizae proven to provide everything your plants need to naturally grow their best!

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Espoma 8 Ounce Concentrated Organic Indoor Plant Food - Indoor Plant Fertilizer for Large & Small Plants Like Pothos, Fiddle Leaf Fig, Monstera, Snake & Palms - Pack of 2

Espoma 8 Ounce Concentrated Organic Indoor Plant Food - Indoor Plant Fertilizer for Large & Small Plants Like Pothos, Fiddle Leaf Fig, Monstera, Snake & Palms - Pack of 2

✓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.

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Espoma Organic 8 Ounce Concentrated Indoor! Plant Food - Indoor Plant Fertilizer for Large & Small Plants Like Pothos, Fiddle Leaf Fig, Monstera, Snake & Palms

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.

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Miracle-Gro Organic Plant Food, Made from Plants for All Plants, Use with Indoor or Outdoor Container Plants and In-Ground Gardens, OMRI Listed, 32 oz.

Miracle-Gro Organic Plant Food, Made from Plants for All Plants, Use with Indoor or Outdoor Container Plants and In-Ground Gardens, OMRI Listed, 32 oz.

✓Miracle-Gro Organic Plant Food is made from plants for all plants for Successful Organic Gardening Made Attainable
✓Made from 94% plant-based fertilizer ingredients, this organic gardening product feeds plants instantly for healthier, more resilient plants (vs unfed plants, when used as directed)
✓Use with all plant types, including indoor or outdoor container plants and in-ground plants in gardens
✓To apply this liquid plant food, dilute with water per label directions and soak the soil around each plant; reapplications may be made to outdoor garden plants every 7-14 days or every 2 weeks to indoor plants
✓This 32 oz. container of Miracle-Gro Organic Plant Food makes up to 10.75 gallons of diluted plant food

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25% Discount

Back to the Roots Natural & Organic Indoor Plant Food (16oz Value Size - 95 Feeds!), Great for Houseplants, Low Odor, Vegan, Easy to Apply Liquid Formula

Back to the Roots Natural & Organic Indoor Plant Food (16oz Value Size - 95 Feeds!), Great for Houseplants, Low Odor, Vegan, Easy to Apply Liquid Formula

Back to the Roots

✓100% Plant and Mineral Based, Non-Toxic Formula — No Synthetic Chemicals or Factory-Farmed Animal Waste Inside
✓This 16 oz bottle (value size) contains a concentrated formula for 95 applications.
✓Grows Stronger Roots and Bigger Plants, 100% Plant Based, All Nautral and Low Odor Blend
✓100% SATISFACTION GUARANTEE: If you are not satisfied or have any issues with this Indoor Plant Food, just shoot us a note and our dedicacted customer support team will make sure we get you growing or send you a refund/replacement.
✓GROWONEGIVEONE — share a photo of indoor garden with GrowOneGiveOne and we'll donate an organic gardening kit + STEM curriculum to an elementary school classroom of your choice.

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16% Discount

MARPHYL Organic Liquid Fertilizer - Outdoor & Indoor Plant Food - All-Purpose, Nutrient-Rich Lawn Fertilizer & Soil Enhancer for House Plants, Flowers, Vegetables, Succulents, Bamboo, Hydroponics

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!

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Organic Indoor Plant Food - All-Purpose Liquid Fertilizer - Best for Live Houseplants Indoors + Common Home Outdoor Plants in Pots (8 oz)

Organic Indoor Plant Food - All-Purpose Liquid Fertilizer - Best for Live Houseplants Indoors + Common Home Outdoor Plants in Pots (8 oz)

✓WONDERFULLY ORGANIC - Contains premium organic ingredients made with your home and the environment in mind. Working with organics can make a big impact on your plant's overall vigor. Perfect when paired with compost, worm castings, leaf shine spray, and other natural products.
✓ESSENTIAL NUTRIENTS - Premium, urea free balanced mix of macro and micro nutrients that gently feeds all potted household plants. Super vitamin and bloom booster formula helps encourage strong roots, new growth, and beautiful leaves for sustainable long term plant vigor.
✓TRULY ALL-PURPOSE - Excellent for both plant care and organic gardening. Use with all common houseplant types (indoor and outdoor) in various potting containers. Ideal to use on live plants around the entire house, apartment, and office.
✓GROW WITH CONFIDENCE - Plant care made simple. Easy to understand instructions makes using our solution in watering cans or a spray bottle effortless. Just dilute with water, apply, and watch your plants thrive! Can be applied in a pot containing gravel, moss, pebbles, perlite, pumice, lava rocks, and other soil mixes.
✓FOR POPULAR HOUSEPLANTS - Air plant, fiddle leaf fig, snake plant, orchids, bonsai trees, spider, string of pearls, monstera, pothos, zz, bamboo, peace lily, african violet, aloe vera, prayer, hoya, mums, ivy, elephant ear, palm, fern, pilea, philodenron, dracaena, chinese evergreen, succulents, cactus, jasmine, money tree, other hanging and trailing plants, terrarium plants, tropical plants and many more!

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