Oceanic Liquid Seaweed Fertilizer

How To Use Oceanic Liquid Seaweed Fertilizer


General Guidance

How to Use

To maximize the benefits of Liquid Seaweed , use it as part of a well-balanced plant nutritional program.

Liquid Seaweed is always further diluted with water (preferably with an approximate pH of 6.0) to the appropriate concentration and applied to foliage or soil. The plant absorbs the extract immediately and is responding by the second day.

Always shake or mix Liquid Seaweed well before diluting. Only make up what you can use at one time.

Foliar application is the most efficient and effective method. Kelp extracts are 8 to 20 times more effective when applied to the leaves then when broadcast on the soil. Spray as a fine mist until it drips off the plants’ surfaces.

Liquid Seaweed can be used with a variety of sprayers -- plant misters, pump-up, backpack, hose-end, or tractor sprayers. The dilution rates provided here are based on area measurements. Depending on the type of sprayer you have, simply dilute Liquid Seaweed with the appropriate amount of water for your sprayer to cover a specific area. Liquid Seaweed also works well with irrigation systems.

When to Use

Apply Liquid Seaweed to improve specific growth stages. For example:

  • To promote additional buds, apply Liquid Seaweed when plants are beginning to bud
  • To extend the shelf life of fruits and vegetables, spray 10 days before harvesting
  • To lengthen the life of cut flowers, spray Liquid Seaweed a day or two before cutting

In lieu of trying to catch specific growth stages, apply Liquid Seaweed every 2 to 4 weeks.

The Liquid Seaweed solution should be sprayed in the morning or late afternoon when the leaves' stoma are open. Avoid applying between noon and mid-afternoon when the sun is most intense and the stoma are closed. Also avoid spraying Liquid Seaweed before it rains or while it is raining.

How to Store

Liquid Seaweed has a shelf life of one year when kept from extreme temperatures. Avoid freezing and direct sunlight. Always close the lid tightly.

Dilution Rates and Application Frequencies

Use a Wetting Agent:

Liquid Seaweed should be used with a mild bio-degradable detergent or a non-ionic surfactant. This will help prevent beading on the foliage and allow more efficient uptake by the seeds, plants, and soil. Avoid harsh detergents, or spreader stickers for pesticides.

Add ¼ to ½ teaspoon of detergent per 1 gallon of fully diluted Liquid Seaweed. Use manufacturer's instructions for a surfactant.

Vegetables, Flowers, Lawns, Fruits, Berries, Trees, and Shrubs:

Large areas: mix 2 gallon of Liquid Seaweed with enough water to cover 1 acre. Small areas: mix 2 tablespoon of Liquid Seaweed with enough water to cover 300 square feet

Hay & Forage Crops (grasses & legumes), and Feed (corn & small grains):

Liquid Seaweed applied to pasture crops increases the nutrient uptake, the protein content, and overall quality of the crop.

Feed: Apply 2 gallon per acre during 4-6 leaf stage, repeated in 10-14 days.

Hay: Apply 2 gallon per acre to young re-growth 7-14 days after mowing.

Forage: Apply 2 gallon per acre to pastures before animals are set out, and again at monthly intervals, or sooner if stress symptoms appear.

For intensively-managed pasture, apply ½ gallon per acre to each section shortly after animals are moved out. If rotation is less than 2 weeks, apply every other time that animals are moved out.

Seed Treatment:

Treating seeds or seed pieces with Liquid Seaweed prior to planting will improve seed germination, root growth, and early seedling vigor. Seeds or seed pieces can be treated in one of the following ways:

Lightly mist the seeds or seed pieces before planting with 8 teaspoons Liquid Seaweed diluted in 1 gallon of water. Use approximately 2 gallon of this solution to cover 1 acre,


Soak the seeds, seed pieces, or bulbs for 5 to 10 seconds with 8 teaspoons Liquid Seaweed diluted in 1 gallon of water.

Rooting Solution and Transplanting:

Liquid Seaweed also can be used as a rooting solution. Place cuttings in a solution of Liquid Seaweed and water until roots develop, then plant. When planting, water in with Liquid Seaweed solution.

Solution Dilution Rate: 8 teaspoons of Liquid Seaweed to 1 gallon water.



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