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★★★★★ 367 REVIEWS

ALGA-SOL
Aqueous Extract

Elite seaweed biostimulant. Free Delivery to all UK Mainland postcodes included.

1 LITRE
Garden & Houseplants
£19.99
5 LITRE
POPULAR
£29.99
20 LITRE
Small Holding / Large Lawns
£74.99
1000L IBC
Commercial / Trade Rate
£2,500
BEST BULK VALUE
ALGA-SOL Growth Results
Professional Grade

ALGA-SOL Seaweed Fertilizer

Developed by leading scientists after a 6-year study, ALGA-SOL is the professional choice for those who demand elite plant vitality. Our Cell Harvest Technology preserves nature's most delicate bioactives.

Used by 60% of UK Premier League Football Grounds and the legendary Gleneagles Golf Course.

Balanced pH (5-6)

Ideal for all applications. Eliminates the risks of high-alkaline extracts like potato scab.

Cold-Press Pure

Extracted via high-pressure at low temperatures to prevent bioactive degradation.

100% British

Hand-harvested Ascophyllum nodosum, processed within 6 hours of leaving the sea.

The Science of Vitality

ALGA-SOL is naturally rich in chelated micronutrients and functional polysaccharides. Our unique process retains maximum levels of:

  • Growth Hormones: Cytokinins, Auxins, and Gibberellins for root development.
  • Mannitol (2.01%): Protects against drought, frost, and environmental stress.
  • Alginic Acid (3.18%): Enhances soil structure and moisture retention.
  • Laminarins (1.17%): Primes the plant’s natural defense systems.

*(Jug test recommended).

Seaweed Extract Detail
Laminarins: 1.17%
Fucoidan: 0.49%
Alginic Acid: 3.18%
Mannitol: 2.01%
pH: 5.0 - 6.0

Crop Application Guide

Select your crop to view professional dilution and application protocols.

Tuber Optimization

Potatoes

  • Initial Set: Apply 3L/ha at tuber initiation to improve the set of shy varieties. Can also be applied in-furrow at planting.
  • Bulking: 1.5L/ha in two subsequent sprays over 28 days to retain strong green foliage and extend the bulking period.
  • Disease Resistance: Safe for direct seed potato coating without risking infection by scab bacteria.
Yield & Protein

Cereals

  • Soil Prime: Apply 3L/ha mixed with pre-emergence herbicide to pump-prime the soil microbial community.
  • Early Growth: 3L/ha between 2 and 6 leaf stage (compatible with pesticides).
  • Maintenance: 2L/ha 28 days later to maintain healthy green foliage and strengthen plant defences.
Root Resilience

Oilseed Rape

  • Spring Growth: Apply 3L/ha as soon as spring growth is evident.
  • Winter Preparation: Apply 3L/ha in late autumn for winter rape to produce a strong and resilient root system.
Vigorous Establishment

Sugar Beet

  • Establishment: Apply 2L/ha at 4 true leaf stage to promote vigorous seedling establishment and prevent mid-summer bolting.
  • Vegetative Growth: 2L/ha in two subsequent sprays over 6 weeks to maintain rapid growth and strong plant defences.
Tillering & Chlorophyll

Grassland

  • Spring Stimulant: Apply 3L/ha during spring growth to stimulate chlorophyll production and promote tillering.
  • Silage Prep: 3L/ha applied three weeks before each cut.
  • Winter Survival: 2L/ha during summer decline to maintain a strong root system over winter.
Top & Soft Fruit

Fruit Crops

  • Flowering: Apply 2L/ha during flowering as a foliar spray or through irrigation lines.
  • Root Dips: Dilute 1 part ALGA-SOL to 200 parts water for planting to ensure a robust start.
  • Vegetative Growth: Continue applications in conjunction with other sprays throughout the season.
Argyll Coast, Scotland

The Journey of ALGA-SOL

From the pristine waters of the Scottish Highlands to our Glasgow facility—pure, powerful, and scientifically extracted.

1

Sustainable Harvest

Hand-harvested from the rugged Argyll Coast. Seaweed is shipped to our Glasgow factory within 24 hours.

2

Cell-Burst Extraction

Combining high-pressure and ultrasound, we burst cell walls. releases bioactives without heat degradation.

3

Concentration & Bottling

Aqueous extract is concentrated at cold temperatures, filtered, and bottled immediately.

Bioactive Integrity

ALGA-SOL is a true Aqueous Extract. By maintaining a cold chain and avoiding chemical catalysts, we lock in the natural cytokinins and alginates. Mass-market seaweeds rely on harsh chemical methods like Alkaline Hydrolysis. These processes permanently damage the delicate hormones and nutrients.

Proven Trial Performance

Scientific meta-analysis across global field trials confirms the biostimulant power of Ascophyllum nodosum.

Potatoes & Tubers

Trials show significant increases in both marketable yield and dry matter content (starch) when applied at tuber initiation.

Yield Increase +21.2%

Cereals (Wheat & Barley)

Aqueous extracts improve chlorophyll density and nutrient uptake, leading to higher grain weight and protein levels.

Average Yield Increase +15.2%

Sugar Beet

Foliar application optimizes sugar distribution, resulting in higher root weights and significantly improved sugar purity.

Yield Uplift +30.0%

Plant Quality (Brix/Sugar)

Beyond yield, extracts improve the sugar-acid ratio and Vitamin C levels, ensuring a more nutrient-dense harvest.

Sugar-Acid Ratio +38.3%

Achieve Professional Yields Today

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