GARDEN GOLD - Sea-Prime Organic Seaweed Fertiliser


Top 3 Reasons to Choose Garden Gold

  • Extra strong seaweed extract – with 24% Ascophyllum nodosum for deep roots, vibrant leaf color, and vigorous growth
  • Immediate effect on growth & resilience – 20% amino acids and added iron (Fe) support stress recovery and photosynthesis
  • One formula for everything – suitable for gardens, greenhouses, sports turf, and compost – safe for children and pets
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Price per liter
500 ml Sale price €13,49 Regular price €16,95 €26,98
1 Liter Sale price €20,69 Regular price €26,00 €20,69 Most popular
5 Liter Sale price €87,49 Regular price €110,00 €17,50 Best buy

5 Liter products qualify for FREE SHIPPING!

Selected price: Sale price€13,49
Volume: 500 ml
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Before and after Sea-Prime application

Before Application

Before Application

After Application

After Application

Slepen

For lawns, ornamentals, vegetables, herbs, fruit trees, vineyards, potted plants – even sports turf or golf greens – GARDEN GOLD – Sea‑Prime Formula is a powerful organic biostimulant and fertiliser in one. Developed for healthy growth, deep rooting, and vibrant foliage in both home gardens and professional settings.

With 24% seaweed extract (Ascophyllum nodosum) and 20% plant-based amino acids, this premium formula delivers a natural boost to nutrient uptake, plant resilience, and overall vitality. Added iron (Fe) prevents chlorosis and promotes lush green growth and active photosynthesis.

Visible results: stronger foliage, healthier soil biology, and vigorous growth – in open soil, containers, greenhouses, orchards, or turfgrass.

Why choose GARDEN GOLD – Sea‑Prime Formula?

  • 24% seaweed extract – a powerful natural growth stimulant rich in plant hormones
  • 20% amino acids – boosts stress resistance and speeds up recovery
  • Added iron (Fe) – prevents yellowing and supports photosynthesis
  • Vinasse-free – no salt buildup, safe for roots
  • Stimulates root development – by supporting healthy and active soil biology
  • Improves growth, flowering & fruiting – for stronger plants and higher quality yields
  • Stress protection – supports plants during drought, heat, mowing, or pruning
  • Compost accelerator – speeds up natural decomposition processes
  • One formula does it all – suitable for all plant types
  • Safe & gentle – perfect for households with pets and children

Active Ingredients

  • Seaweed extract (Ascophyllum nodosum) – rich in plant hormones and minerals
  • Amino acids – improve uptake and support resilience
  • Humic & fulvic acids – enhance soil biology and structure
  • Iron (Fe) – essential for chlorophyll and deep green foliage

This CE-certified biostimulant/fertiliser hybrid is developed based on agronomic research into the synergistic effect of seaweed extract and plant-based amino acids on plant growth, stress resistance, and nutrient uptake. Thanks to its high concentration of bioactive compounds – including 24% seaweed and 20% amino acids – Sea‑Prime supports both above-ground and below-ground growth, whether in soil, greenhouses, or turfgrass.

Sea‑Prime Formula is also suitable as a compost accelerator – perfect for enriching food waste and greenhouse compost.


  • CE certified
  • Produced in the EU
  • Registered in the European Input List for organic production
  • Listed in the FiBL Input List for organic production in Germany
  • Suitable for Demeter / biodynamic agriculture

Trusted by organic growers across Europe

Read more: Tips for fertilising with Sea‑Prime

YIELD (liters of mixed fertiliser):
Product: 500 ml 1 liter 5 liter
Soil irrigation: 50 – 100 100 – 200 500 – 1000
Drip irrigation: 200 – 500 400 – 1000 2000 – 5000
Foliar feeding: 100 – 250 200 – 500 1000 – 2500

Note: Organic fertilisers are not suitable for hydroponics (such as hydroponic systems or the use of clay pellets as substrate)!

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