Brewing quality products since 1996 AgriSea NZ Ltd is a multi-award winning sustainable New Zealand company, family owned and operated. The company produces Seaweed Soil, Foliar, Turf, Pasture and Animal Health concentrates for Agriculture and Horticulture.

The New Zealand native seaweed species (ecklonia radiata) is batch-brewed with specially selected essential herbs for up to 90 days. The natural brewing process eliminates the use of processing with heat, chemicals, freezing or dehydration that might ‘denature’ the sensitive nutrient balance, allowing the natural growth stimulants and micro-nutrients to be released in an active form to enhance soil and plant health. AgriSea’s natural brewing methods are unique for commercial production.

Seaweed is one of the most complex materials available containing almost every known element. Its vast range of minerals, trace elements, mannitols, alginates, amino acids, naturally occurring growth hormones, and antibodies etc provide a nutrient ‘feast’ for flower crops.

AgriSea Soil Nutrition feeds and increases the soil microbial population building the precious humus layer which is the nutrient storehouse of the soil

AgriSea Foliar Nutrition provides nutrients directly to the crop ensuring healthy plants can resist leaf borne disease and insect attack.


Apply AgriSea Soil Nutrition
@ 1:50 dilution at planting and at least 4 times over the growing season.

Apply AgriSea Foliar Nutrition
@ 1:100 dilution, 5L per ha every 7-12 days from seedlings to harvest.


  • Less soil disease
  • Enhanced colour in foliage & blooms
  • Stronger stems and buds
  • Enhanced perfume (from a prominent NZ rosarian)
  • Aids resistance to insect
  • attack in plastic houses (e.g. spider mite)
  • Excellent aid for prevention of mildew
  • Used by many export flower growers and rosarians in New Zealand.
  • A fertile productive soil is a biologically active soil in which large microbial populations flourish.

An experienced commercial flower grower reports

“These are very good products. I’ve had much less disease, much less downy and powdery mildew. It has certainly improved the quality and hardness of flower stems and their overall colour.”

Dirk Brak, Spectrum Flowers, Drury