MARPHYL® Organic Soil Enhancer is a concentrated liquid that contains an abundance of nutrients, vitamins and minerals from the marine phytoplankton, and it’s recommended for use only on household plants, urban/veggies gardens, lawns, golf courses and greenhouses.

Plants rely on potassium to facilitate the circulation of nutrients and on nitrogen as the essential element in photosynthesis, while the roots need phosphorus to thrive. MARPHYL® Organic Soil Enhancer is high in potassium, nitrogen, and phosphorus, and also contains trace amounts of other nutrients, such as calcium and magnesium for optimum plant health and growth.

MARPHYL® Organic Soil Enhancer is listed by OMRI (Organic Materials Review Institute) on OMRI Products List©.

Phytoplankton Soil Enhancer (Fertilizer) 500ML and 1L


Happy and healthy plants in just a few steps.

Location where the video is filmed is West Coast Jungle – an amazing plant store in Vancouver, Canada.

  • Shake well the bottle of MARPHYL® Organic Soil Enhancer.

  • Open the bottle. The liquid should look cloudy brown. A presence of some unpleasant smell is normal. The product is 100% natural and is made of decomposed phytoplankton. The smell will dissipate after you mix the Soil Enhancer with water.

  • Fill up your watering tank with enough fresh water to water your plants.

  • Measure how much MARPHYL Soil Enhancer you need. The rule is simple – you need 20 times less Soil Enhancer than water.


Water MARPHYL® Organic Soil Enhancer
5 liters 250 ml
1 liter 50 ml
1 gallon 6.4 ounces
1 cup 1 MARPHYL® Organic Soil Enhancer cap

Add the required amount of MARPHYL Soil Enhancer into the watering tank. Mix well.
If you are using a hose with an automatic dispenser, you should regulate your dispenser for 1/20 (which usually is the setting #5). But you would need to validate the dispenser ratio. Usually, these systems work on an oz per gallon fraction.

  • Apply the mixture to the soil of your plants.

  • Repeat the process once every two weeks.

If you have any questions, feel free to reach out to us through our contact form or Instagram.