Neptune’s Harvest Seaweed 0-0-1 Organic Kelp Fertilizer

Neptune’s Harvest Seaweed 0-0-1 is an OMRI Listed organic liquid kelp fertilizer made from cold-processed Ascophyllum nodosum seaweed harvested from the North Atlantic. This natural seaweed plant food provides a rich source of trace minerals, amino acids, vitamins, and naturally occurring plant growth compounds that help support stronger roots, healthier foliage, improved stress resistance, and overall plant vigor.

Although its NPK analysis is a gentle 0-0-1, Neptune’s Harvest Seaweed is valued as a powerful plant supplement that works well alongside your regular feeding program. It can be used on vegetables, herbs, flowers, houseplants, lawns, trees, shrubs, seedlings, transplants, containers, raised beds, and garden beds as either a soil drench or foliar spray.

Key Benefits

Made from North Atlantic Kelp
Cold-processed Ascophyllum nodosum seaweed helps preserve naturally occurring nutrients, amino acids, trace elements, and plant-supporting compounds.

Supports Stress Resistance
Helps plants better tolerate environmental stress from heat, drought, transplanting, temperature swings, and early frost.

Encourages Strong Root Development
Promotes healthy root growth and supports beneficial microbial activity in the soil.

Great for Foliar or Soil Feeding
This liquid seaweed fertilizer is easy to mix and can be applied directly to the root zone or sprayed onto leaves for quick plant support.

Useful for Seed Starting & Transplants
Can be used as part of a seed-starting or transplant routine to support germination, early root development, and young plant establishment.

OMRI Listed for Organic Gardening
Suitable for organic gardens, houseplants, vegetables, flowers, lawns, containers, raised beds, and greenhouse growing.

How to Use Neptune’s Harvest Seaweed

General Use:
Mix approximately 1 oz, or 1/8 cup, per gallon of water.

Application Frequency:
Apply weekly or use in alternate feedings as part of your regular fertilizer program.

Soil Drench:
Apply around the base of plants to support roots and soil biology.

Foliar Spray:
Spray leaves evenly until wet, applying in the early morning or evening and avoiding the hottest part of the day.

Seed Starting:
Use as directed as a seed soak or inoculant to help support germination and early plant development.

Shake well before use, mix thoroughly with water, and always follow the product label for best results based on your plants and growing conditions.