

Hero image 0 of MARPHYL Organic Liquid All Purpose Fertilizer – Indoor & Outdoor Plants, 16.9 oz, 0 of 7
MARPHYL Organic Liquid All Purpose Fertilizer – Indoor & Outdoor Plants, 16.9 oz
Key item features
- Superior Plant Food: MARPHYL Marine Phytoplankton is ideal for both indoor and outdoor plants, enhancing soil quality and promoting vibrant blooms.
- Rich Nutrients: Packed with vitamins, minerals, essential fatty acids, DHA, EPA, amino acids, and chlorophyll for optimal plant health.
- Organic & Sustainable: 100% natural, vegan, non-toxic, non-GMO, and preservative-free, making it safe for vegetable gardening, groundwater, and pets.
- Miraculous Benefits: High in potassium, nitrogen, phosphorus, calcium, and magnesium, ensuring lush foliage and healthy plants.
- Easy Application: Mix a 1:20 ratio with water, stir, and pour onto plants. Recommended use is every two weeks for noticeable results.
- Product Volume: 16.9 oz of liquid fertilizer, perfect for regular use in gardens, greenhouses, and hydroponics.
Generated by AI
Specs
- Fertilizer typeNatural
- FormLiquid
- Rec. usePlant
- Rec locationIndoor, Outdoor
- Plant categoryHouse Plants
- Plant nameAll plants
Current price is USD$14.9688.5 ¢/fl oz
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About this item
Product details
It's one of nature's many miracles. Marine Phytoplankton is found in oceans across the world, but thrives in the waters of the Strait of Georgia on Vancouver Island in British Columbia, Canada. Our MARPHYL fertilizer is packed with nutrients, vitamins, and minerals. Our unique plant food fertilizer is high in nitrogen, phosphorus, and potassium, and contains trace amounts of calcium and magnesium for flourishing plants and beautiful, full foliage. You'll appreciate our Safe and Sustainable all purpose fertilizer because it's: 100% natural (made with 100% pure marine phytoplankton), Non-GMO and has no preservatives, Run off safe as it originates in the ocean , Listed by OMRI (Organic Materials Review Institute). Product Volume: 16.9 oz
- Superior Liquid Plant Food - MARPHYL Marine Phytoplankton is ideal as an outdoor and indoor plant fertilizer. It works great as vegetable fertilizer, houseplant fertilizer, and garden fertilizer. It’s an organic solution 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.
- Naturally Boost Plant Health - 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 and outdoor plants, lawns, trees, flowers etc. provides an astounding array of nutritional elements.Our soil fertilizer is packed with vitamins, minerals, essential fatty acids, DHA, EPA, amino acids, chlorophyll, and a vast spectrum of phytochemicals, to make your garden and greenhouses 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, groundwater, and pets. This indoor plant food 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.
- Miraculous & Beneficial - Found in oceans across the world, marine phytoplankton are microalgae that infuse your plants, trees, grasses, and more with everything they need for health and longevity. Our plant food is 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. Soil feed is perfect for use in small and large sprayers. Recommended use is every two weeks. You'll see the difference after just one application.
- Product Volume: 16.9 oz
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.
Specifications
Fertilizer type
Natural
Form
Liquid
Rec. use
Plant
Brand
Marphyl
Ingredients
Ingredients
Wild and Multi Species Marine Phytoplankton
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Customer ratings & reviews
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Showing 1-3 of 17 reviews
Jul 3, 2025
Whitebird
Item details
Size: One Size
5 out of 5 stars review
Verified Purchase
I wanted a product that was organic and I could feel comfortable using on my plants, especially my herbs. This liquid fertilizer works great, it is safe to use and is an excellent value for the price.
Incentivized Review
Helpful?5PNEGRF4MC12246226698
Jun 16, 2026
Alanna
Item details
Size: One Size
5 out of 5 stars review
Verified Purchase
Simple to use just follow the instructions. I definitely saw an improvement in my plants. They staying healthy and strong all winter long.
Incentivized Review
Helpful?5PNEGRF4MC12246226698
Dec 20, 2025
Linda
Item details
Size: One Size
5 out of 5 stars review
Verified Purchase
I like that this does not burn my plants. It is a good soil conditioner.
Incentivized Review
Helpful?5PNEGRF4MC12246226698






