Marine Phytoplankton Organic Liquid Fertilizer


Superior Liquid Plant Food – Marine Phytoplankton Organic Liquid Fertilizer. Indoor & Outdoor House Plant Fertilizer.

MARPHYL Marine Phytoplankton is harvested 100% naturally and is organic. It is ideal as an outdoor and indoor plant fertilizer; as vegetable fertilizer, houseplant fertilizer, and garden fertilizer. It’s a natural and effective 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.

*Multiple Sizes Available

  • Vegan
  • Non-toxic & pesticide free, non-GMO
  • OMRI Listed for Organic use.
  • Sustainably made and harvested on Vancouver Island, Canada.
  • Licensed by the Canadian Food Inspection Agency.


All-Purpose Natural Nutrient-Rich Plant Food. Soil Enhancer for Garden, Flowers, Vegetables, Succulents, Bamboo, Hydroponics

Multiple sizes available -16.9 oz  (500ml), 33.8 oz (1L), 67.6 oz (2L) 1.05 gal (4L)

  • 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.
  • Safe environment for gardeners and farmers – Naturally boosts plant health without harming the surrounding environment. Runoff is safe as it originates in the ocean. Non–toxic, No preservatives, Pesticide free & Fungicide free. Licensed by the Canadian Food Inspection Agency.

Recommended use: once every week to once every 2 weeks. Ratio 1/20 – One serving of Soil Enhancer for 20 servings of fresh water.

See why seaweed is beneficial for your garden, and the planet. 

Additional information




Options: 1.05 gal, 16.9 oz, 33.8, 67.6 oz


Marine Phytoplankton




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