Dry Amendments

Build long-term soil fertility and feed your soil food web with our premium selection of Dry Amendments and Organic Inputs. Unlike immediate liquid fertilisers, dry amendments release essential macro and micronutrients gradually over time, conditioning your substrate and providing steady, natural nutrition throughout both vegetative and flowering cycles.

Our comprehensive range includes nitrogen-rich plant-based inputs like soybean meal and alfalfa meal, along with mineral and micronutrient powerhouses such as cold-water seaweed meal, wollastonite (calcium silicate), and volcanic rock dust. For complete, balanced feeding, we offer all-in-one organic Grow and Bloom powdered blends, as well as biologically active inputs like premium worm castings, bat guano, mycorrhizal fungi, and specialised microbial inoculants to maximise root absorption.

Whether you are top-dressing existing container pots, re-amending spent soil mixes, or building custom organic substrates from scratch, our dry amendments provide the building blocks for an active, living root-zone ecosystem.

Key Benefits:

  • Sustained Nutrient Release: Provides steady, long-lasting nutrition without the risk of heavy salt buildup or immediate root burn.

  • Thriving Soil Biology: Feeds beneficial bacteria and mycorrhizal fungi, building a self-sustaining soil ecosystem.

  • 100% Plant-Based & Natural Options: Includes veganic meals, natural mineral powders, and biologically rich organic inputs.

  • Custom Substrate Building: Ideal for amending peat or coco coir, top-dressing potted crops, and recycling used soil.

  • Improved Soil Structure: Natural meals and castings enhance water retention, soil aeration, and cation exchange capacity (CEC).

Featured Dry Amendment Categories:

  • Organic Plant Meals: Soybean meal, alfalfa meal, and kelp/seaweed meal for natural nitrogen, potassium, and trace elements.

  • Natural Minerals & Dusts: Wollastonite, basalt rock dust, and gypsum for silica, calcium, and mineral balance.

  • Grow & Bloom All-In-One Blends: Pre-formulated powdered top-dressings tailored for vegetative growth and heavy flowering.

  • Biological & Castings: Worm castings, bat guano, mycorrhizal inoculants, and beneficial microbe blends.

Plan Your Grow With Confidence

Not sure how much you need? Use our free Garden Calculators to take the guesswork out of growing. From soil volumes to feed rates, our tools help you get it right first time — so nothing goes to waste and your plants get exactly what they need.

Explore the Calculators

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