Riddhish Herbals
Sargassum (Brown Seaweed) Powder – Organic Plant & Soil Tonic – Riddhish Herbals
Sargassum (Brown Seaweed) Powder – Organic Plant & Soil Tonic – Riddhish Herbals
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Sargassum Seaweed Powder is a dried, milled brown macroalga (Sargassum sp., including Sargassum wightii), supplied as a natural organic input for garden and farm use — a soil conditioner and plant growth tonic, not a food or health product.
About This Product
Sargassum is a brown seaweed harvested from marine waters, dried and milled into a fine powder. It is used in organic gardening and natural farming as a soil conditioner and bio-stimulant, valued for its natural mineral and organic-carbon content. It is supplied as a raw organic input, not as a registered or FCO-standardised chemical fertiliser.
Key Features
- Dried, milled brown seaweed (Sargassum sp., incl. Sargassum wightii)
- Used as a natural soil conditioner and plant growth tonic
- Suitable for organic gardening and natural farming input programmes
- Rich in natural organic carbon and a range of minerals, as shown in the lab analysis below
- A raw marine-derived organic input, not a synthetic chemical fertiliser
- Nutrient levels are natural and vary batch to batch, as with any marine material
- Suitable for compost enrichment and general garden and field use
- From Riddhish Herbals — genuine products with bill provided on every order
Composition & Lab Analysis
| Parameter | Value (as analysed) |
|---|---|
| Botanical / material | Sargassum sp. (brown macroalga; incl. Sargassum wightii) — dried whole thallus, milled to powder |
| Organic Carbon | 12.23% |
| Nitrogen (N) | 2.28% |
| Phosphorus (P) | 28.78% * |
| Potassium (K) | 1.93% |
| Calcium (Ca) | 5.16% |
| Magnesium (Mg) | 1.2% |
| Iron (Fe) | 23 ppm |
| Copper (Cu) | 115 ppm |
| Zinc (Zn) | 78 ppm |
| Boron (B) | 11 ppm |
| pH | 7.6 |
| Moisture | 14.78% |
Values from an independent Singham Laboratory analysis of a dried-leaf sample (Ref. SL/TL/1809033/20-21). Sargassum is a natural marine material, so nutrient levels vary from batch to batch. It is supplied as a raw organic input and soil conditioner, not as a registered or FCO-standardised chemical fertiliser. * Phosphorus figure reproduced as reported by the laboratory.
Application & Storage
Apply as per standard agricultural or gardening practice for seaweed-based organic inputs — mix into soil, compost, or as a foliar/soil application at the rate suited to your crop, soil, and local growing conditions. For an exact application rate, follow general organic-farming or gardening guidance for seaweed powder, or consult a local agricultural extension resource for your specific crop. This is a garden and agricultural input, not intended for human or animal consumption. Keep out of reach of children and away from food storage areas. Store in a cool, dry place in a tightly closed container.
Also searched as: Sea moss powder, seaweed fertilizer, seaweed extract powder, marine algae powder, seaweed powder for plants, organic seaweed manure.
Frequently Asked Questions
What is Sargassum Seaweed Powder used for?
It is used as a natural organic input in gardening and farming — a soil conditioner and plant growth tonic, made from dried, milled brown seaweed.
Is this a food or health product?
No. This is a garden and agricultural input, not intended for human or animal consumption.
What is the botanical source of this powder?
It is made from Sargassum sp., a brown macroalga, including Sargassum wightii, dried and milled into powder.
How do I apply this powder to my plants or soil?
Apply as per standard agricultural or gardening practice for seaweed-based inputs — mixed into soil, compost, or as a foliar/soil application at a rate suited to your crop and growing conditions.
Is this a registered chemical fertiliser?
No. It is supplied as a raw organic input and soil conditioner, not as a registered or FCO-standardised chemical fertiliser.
What does the lab analysis show?
An independent laboratory analysis (Singham Laboratory, Ref. SL/TL/1809033/20-21) reports organic carbon, nitrogen, phosphorus, potassium, calcium, magnesium, and trace minerals — see the composition table above for exact values.
Will every batch have identical nutrient values?
No. Sargassum is a natural marine material, so nutrient levels vary from batch to batch.
How should I store this powder?
Store in a cool, dry place in a tightly closed container, away from moisture and away from food storage areas.
Is this suitable for organic gardening and natural farming?
Yes, it is commonly used as an input in organic gardening and natural farming programmes.
How do I know this is the genuine pack?
Every Riddhish Herbals order ships with a bill, and the pack is sold and dispatched directly by Riddhish Herbals.
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