Age Old Nutrients - Kelp 0.30-0.25-0.15

Age Old Kelp for Tired Soil and Hungry Transplants

The moment most growers reach for a jug like this is when a bed or a reused mix starts looking worn out. This is a liquid seaweed made from Ascophyllum nodosum, with a small guaranteed analysis of 0.30-0.25-0.15. Those numbers are low by design. The value is in the minerals, natural chelators and growth compounds the kelp carries. Those feed soil biology and help roots pull in what is already there. Indoors, Age Old's label calls for 1 tsp per gallon with every watering. Tropicals and vegetables get a stronger 2 oz per gallon, sprayed or drenched once a week. Bare-root stock and seed get an overnight soak at 2 oz in 2 gallons before planting. Growers typically drench right after transplant, then keep the light every-watering rate going through veg. Foliar passes go on early in the light cycle, with the flower sites kept dry once they have formed. The liquid is dark and nearly odorless, so it does not stink up a small room the way fish blends can. Shake the container before measuring, since seaweed solids settle over time.

How a Liquid Kelp Fertilizer Works Alongside Your Base Nutrients

Think of it as a support input rather than a feed. It will not carry a plant through bloom on its own, and it is not meant to. What it does well is restore activity in soil that has been cropped hard or sat dry between runs. That makes it a natural fit for no-till beds, reused containers and outdoor gardens coming out of winter. In recirculating hydro, organic kelp can feed biofilm if the reservoir runs warm, so many growers keep it to drain-to-waste or soil. The quart suits houseplants and a tent, while the gallon covers a small room on the every-watering rate. The 2.5 gallon jug and the 6 gallon container move into greenhouse and market-garden territory. The drum is strictly for farms and multi-room facilities with pumps to draw from it. Age Old also makes a fish and seaweed blend when you want real nitrogen in the same bottle. This straight kelp is the one to keep when your base program already covers the major nutrients.

Key Features

• 0.30-0.25-0.15 Analysis: Low NPK keeps it from skewing a base feed, even at every watering.
• Ascophyllum nodosum Seaweed: Sustainably harvested sea kelp with natural chelators that help roots take up nutrients.
• Soil Biology Support: Used as a drench to rebuild tilth and biological activity in worn or damaged soil.
• Drench, Foliar and Soak: One liquid covers watering, weekly sprays and overnight bare-root or seed treatment.
• Nearly Odorless: Fast-acting minerals without the smell of fish-based organics in an indoor space.
• Five Sizes: From a quart for houseplants up to a 55 gallon drum for commercial operations.

Technical Specifications