Akers Organic Soil Builder is a finely screened humus, the result of composted organic materials, perfect to use as a natural soil improver and plant food. The slow-release granules are low in phosphorus and ideal for all plants including acid-loving plants and natives. The best way to permanently change your soil structure, Akers Organic Soil Builder increases soil health, soil fertility, crop yield, and crop quality.

Humus contains humin, humic acid, and fulvic acid which aim to:

  • Improve soil structure
  • Improve soil water holding capacity
  • Increase the efficiency of nutrient uptake by plants
  • Insulate the soil from extreme temperature changes
  • Feed the beneficial soil microbes
  • Improve nutrient movement within plants
  • Regulate plant hormones needed for normal growth
  • Increase energy production for essential functions, such as photosynthesis
  • Increase formation and growth of new roots

Ideal for the establishment of new garden beds, as a base for new lawns, or the build up of existing gardens.


TURF – NEW LAWN: Dig 75g per m2 through the topsoil. Avoid laying roots directly onto Akers Organic Soil Builder.

TURF – ESTABLISHED LAWN: Apply 150g per m2. Top dress by hand or through a suitable spreader every 6-8 weeks.

VEGETABLES, HERBS, FLOWER BEDS: Apply 150g per m2. When planting, mix into soil. If established spread evenly over the garden bed and mix into the top 10cm of soil. Repeat application every 8 weeks.

PLANTS: Apply 75g for seedling and small plants, 150g for medium size shrubs, and 200g for fruit trees. Shrubs and flowering plants including Roses, Azaleas, and Camellias; apply 100g per m2 every 8-12 weeks.

NATIVES: Apply 75g per m2 every 8-12 weeks.

FRUITING & FLOWERING TREES: Apply 500g for each year of growth (max 5kg). Apply around the dripline area and mix gently into topsoil. Water and cover area with mulch. Apply at the beginning of each season.

POTTED PLANTS: Apply 20g for 15cm pot, adding 5g for every 5cm thereafter. Increase according to pot size. Spread evenly over the surface of the potting mix, avoiding stem and foliage. When planting, mix thoroughly through potting mix. Repeat application every 6-8 weeks.

Always cultivate into soil and water well.

Available in 10L refillable bucket