Ecothrive Flourish 250ml - Organic Seaweed Extract Plant Biostimulant

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£3.90

Ecothrive Flourish 250ml is a 100% natural, organic-approved seaweed biostimulant made from ultra-purified Ascophyllum nodosum extract. Rich in naturally occurring phytohormones and bioactive compounds, Flourish is designed to support germination, root and shoot development, vegetative vigour, flower and fruit development, nutrient uptake and plant resilience.

Unlike many traditional seaweed products, Flourish has been specifically processed to create a clean, fully soluble and highly stable extract. This makes it suitable for soil and living soil as well as coco and hydroponic reservoirs where less refined organic extracts can create sediment, fouling or blockages.

Ecothrive produces Flourish using a low-temperature, high-pressure extraction process designed to preserve a wide spectrum of naturally occurring bioactive compounds. These include auxins, cytokinins, gibberellins, betaines, alginic acid, laminarin, fucoidan and mannitol.

Flourish can be used from propagation through vegetative growth and flowering as a root feed, or applied as a foliar spray during appropriate crop stages. It is particularly useful in intensive growing environments where plants are exposed to high light levels, rapid growth and changing environmental conditions.

At the recommended root-feed rate of 0.25-0.5ml/L, a 250ml bottle makes approximately 500-1,000 litres of irrigation solution.

Why choose Ecothrive Flourish?

  • Premium seaweed biostimulant - concentrated Ascophyllum nodosum extract rich in naturally occurring plant-active compounds.
  • 100% natural & organic approved - suitable for organic growing programmes and living soil cultivation.
  • Supports germination - suitable for seed soaking and early propagation applications.
  • Promotes root development - particularly useful during propagation and after transplanting.
  • Supports vegetative vigour - natural phytohormones contribute to healthy root and shoot development.
  • Supports flower & fruit development - suitable throughout productive crop stages as part of a complete nutrition programme.
  • Supports nutrient uptake - helps plants make effective use of available nutrition.
  • Enhances stress tolerance - seaweed-derived bioactive compounds support plant resilience under demanding conditions.
  • Ideal for intensive cultivation - particularly useful with high-light crops and intensive indoor growing environments.
  • Ultra-purified formulation - clean and fully soluble compared with less refined seaweed extracts.
  • Reservoir stable - designed to remain stable in hydroponic nutrient reservoirs for extended periods.
  • Suitable for soil, coco & hydroponics - integrates into a wide range of growing systems.
  • Root or foliar application - gives growers flexibility throughout the crop cycle.
  • Highly concentrated - root application requires only 0.25-0.5ml/L.
  • Excellent treatment capacity - 250ml makes approximately 500-1,000L of root-feed solution.

Premium Ascophyllum nodosum seaweed extract

Flourish is produced from Ascophyllum nodosum, a brown seaweed species widely valued in professional horticulture for its naturally occurring bioactive compounds.

Ecothrive sources its seaweed from the tidal waters of Northwest Scotland and the West Coast of Ireland, where it is sustainably hand harvested.

Rather than relying on harsh chemical extraction, Ecothrive uses a low-temperature, high-pressure process. This efficiently breaks down the seaweed material while helping preserve sensitive compounds that can otherwise be degraded during aggressive processing.

Advanced filtration removes residual solids and produces the clean, highly soluble liquid that allows Flourish to be used across living soil, conventional soil, coco and hydroponic systems.

It's the bioactive compounds that make Flourish different

The benefits of a quality seaweed extract extend beyond its trace mineral content. Ecothrive specifically formulates Flourish around a broad spectrum of naturally occurring bioactive compounds and phytohormones.

Phytohormones

Flourish contains naturally occurring auxins, cytokinins and gibberellins. These plant signalling compounds are associated with processes including germination, root and shoot growth, flower development and fruit set.

Betaines

Betaines are naturally occurring compounds associated with plant responses to environmental stresses such as drought and temperature extremes.

Polysaccharides

Seaweed-derived polysaccharides including alginic acid, laminarin and fucoidan form part of Flourish's broad bioactive profile and contribute to its plant biostimulant properties.

Mannitol

Mannitol is another naturally occurring seaweed compound retained within Flourish's wide-spectrum extract.

Support plants under demanding growing conditions

One of the major reasons growers use seaweed biostimulants is to support plants during periods of rapid growth and environmental stress.

Flourish is particularly useful around propagation, transplanting and transitions between vegetative and productive growth, when plants are adapting to changes in their environment.

Ecothrive also highlights Flourish for high-intensity cultivation, including crops grown under powerful LED lighting where higher air temperatures and rapid wet/dry cycles can place additional demands on plants.

Flourish does not replace correct environmental management, irrigation or complete plant nutrition. Instead, it provides additional biostimulant support within a well-managed growing programme.

Ultra-purified for hydroponic reservoirs

Traditional seaweed extracts can contain suspended organic material that makes them difficult to use in recirculating hydroponic systems and fine irrigation equipment.

Ecothrive developed Flourish to overcome this limitation. Its proprietary processing and filtration create a clean, fully soluble and highly stable seaweed extract.

Ecothrive states that Flourish can remain stable in a hydroponic reservoir for weeks without the fouling and blockages associated with less refined seaweed products.

Flourish is also tank stable and highly compatible with other nutrients and additives, allowing it to be incorporated into an existing feeding programme.

How to use Ecothrive Flourish

For root feeding, apply Flourish at 0.25-0.5ml per litre with every watering.

It can be used as a stand-alone biostimulant or mixed with compatible nutrients and additives as part of a regular nutrient programme.

Root application is suitable across the crop cycle, including:

  • Seed soaking
  • Cube soaking
  • Seedlings & cuttings
  • Propagation
  • Transplanting
  • Vegetative growth
  • Flowering & fruiting

Ecothrive recommends stopping root applications approximately one to two weeks before harvest.

Flourish 250ml root-feed calculations

At the recommended root-feed rate of 0.25-0.5ml/L:

  • 10L water: 2.5-5ml Flourish
  • 20L water: 5-10ml Flourish
  • 50L water: 12.5-25ml Flourish
  • 100L water: 25-50ml Flourish
  • 250L water: 62.5-125ml Flourish
  • 500L water: 125-250ml Flourish

One 250ml bottle therefore makes approximately 500-1,000L of root-feed solution, depending on application strength.

Using Ecothrive Flourish as a foliar spray

Flourish can also be applied directly to plant foliage at 10ml per litre every 10-14 days.

Foliar application is particularly useful during propagation, after transplanting, during vegetative growth and around important crop transitions.

For flowering plants, Ecothrive recommends stopping foliar applications once flowers begin to form. Fruiting plants can continue to receive foliar applications later into the crop where appropriate.

A 250ml bottle makes approximately 25 litres of foliar spray at the standard 10ml/L application rate.

Ecothrive Flourish bioactive analysis

Flourish contains a wide spectrum of measured seaweed-derived bioactive compounds. Typical analysis includes:

Alginic acid 4.125g/100ml
Laminarin 1.12g/100ml
Fucoidan 1.19g/100ml
Mannitol 0.44g/100ml
Betaines 36mg/100ml
Auxins 10mg/100ml
Gibberellins 5mg/100ml
Cytokinins 10mg/100ml

Ecothrive Flourish 250ml product details

Brand Ecothrive
Product Flourish
Product type Natural seaweed extract plant biostimulant
Pack size 250ml
Seaweed species Ascophyllum nodosum
Seaweed origin Northwest Scotland & West Coast of Ireland
Extraction Low-temperature, high-pressure extraction with advanced filtration
Root-feed rate 0.25-0.5ml/L with every watering
Foliar rate 10ml/L every 10-14 days
Approximate root-feed capacity 500-1,000L
Approximate foliar capacity 25L of spray solution
Suitable crop stages Propagation, transplanting, vegetative growth, flowering & fruiting
Suitable systems Living soil, conventional soil, coco & hydroponics
Reservoir compatibility Fully soluble, tank stable & suitable for hydroponic reservoirs
Typical nitrogen 0%
Typical phosphorus 0%
Typical potassium 0.5%
Typical sodium 0.13%
Seaweed solids 3-4% w/v
Organic matter 2.5%
Typical pH 4.2

Ecothrive Flourish 250ml FAQs

What is Ecothrive Flourish?

Flourish is a concentrated Ascophyllum nodosum seaweed extract containing naturally occurring phytohormones and other bioactive compounds. It is used as a plant biostimulant to support growth, nutrient uptake and plant resilience.

Is Ecothrive Flourish suitable for organic growing?

Yes. Flourish is a 100% natural, organic-approved biostimulant suitable for living soil and organic cultivation programmes.

What type of seaweed is used in Flourish?

Flourish is produced from Ascophyllum nodosum sourced from the tidal waters of Northwest Scotland and the West Coast of Ireland.

What makes Flourish different from ordinary seaweed extract?

Ecothrive uses low-temperature, high-pressure extraction followed by advanced filtration. This preserves a broad spectrum of bioactive compounds while creating a clean, fully soluble product suitable for hydroponics as well as soil and coco.

What bioactive compounds are found in Ecothrive Flourish?

Flourish contains measured levels of auxins, cytokinins, gibberellins, betaines, alginic acid, laminarin, fucoidan and mannitol.

Can Flourish be used during propagation?

Yes. Flourish can be used for seed soaking, cube soaking, seedlings, cuttings and other propagation applications before continuing through later crop stages.

Can Ecothrive Flourish be used after transplanting?

Yes. Ecothrive recommends Flourish around transplanting to support root development and help plants cope with transplant stress as they establish in fresh growing media.

Can Flourish be used during flowering?

Yes. Root applications can continue throughout flowering and fruiting. Ecothrive recommends stopping root feeding approximately one to two weeks before harvest.

Can Flourish be used as a foliar spray?

Yes. Apply Flourish at 10ml/L every 10-14 days. For flowering plants, foliar applications should stop once flowers begin to form. Fruiting plants can continue to receive foliar applications later into the crop where appropriate.

Is Ecothrive Flourish suitable for hydroponics?

Yes. Flourish is highly filtered, fully soluble and reservoir stable, making it suitable for hydroponic systems without the heavy organic residues associated with many traditional seaweed extracts.

Can Flourish be used in coco?

Yes. Flourish is suitable for coco and can be mixed alongside compatible base nutrients and additives as part of a regular irrigation programme.

Is Flourish a complete fertiliser?

No. Flourish is primarily a plant biostimulant rather than a complete base fertiliser. Its typical analysis contains 0% nitrogen, 0% phosphorus and 0.5% potassium, so plants still require appropriate complete nutrition.

Can Ecothrive Flourish be mixed with other nutrients?

Yes. Flourish is tank stable and highly compatible with other nutrients and additives, allowing it to be incorporated into an existing feeding programme.

How far does Ecothrive Flourish 250ml go?

At the 0.25-0.5ml/L root-feed rate, a 250ml bottle makes approximately 500-1,000 litres of irrigation solution. At the 10ml/L foliar rate, it makes approximately 25 litres of spray solution.

Can Flourish and Ecothrive Trace be used together?

Yes. Ecothrive's living soil programmes pair Flourish and Trace as complementary products. Flourish supplies seaweed-derived biostimulant compounds, while Trace supplies essential chelated micronutrients.

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£3.90