Vermiculite Fine or Medium Grade – Made in Australia
Vermiculite is a naturally occurring mineral that expands when heated to form soft, absorbent granules. Used widely in horticulture and gardening, it improves soil structure, retains moisture, and supports healthy plant growth. This Australian-made vermiculite is available in Fine or Medium grades and comes in convenient 5-litre or bulk 100-litre bags.
Once exfoliated, vermiculite becomes lightweight and porous, making it suitable for seed raising, hydroponics, potting mix, and microgreen production. Its ability to retain water and nutrients while improving aeration makes it a versatile addition to any growing medium.
Soil-Free Growing Medium
- Combine with coir peat, compost, sand, peat moss, or perlite to create a well-balanced potting mix.
- Can be used alone or with a light layer over seeds to promote even germination.
- Helps maintain consistent moisture levels for seed starting and young plants.
- Suited to hydroponic systems and indoor growing setups.
Sterile and Neutral pH
- Free from weeds, pests, and pathogens, making it ideal for clean growing environments.
- Neutral pH around 7.0 encourages strong, healthy root systems.
- Suitable for crops harvested close to the soil, such as herbs and microgreens.
- Does not decay or promote mould, making it a reliable long-term soil additive.
Improves Soil Aeration
- Creates space within the soil for better air movement and root respiration.
- Prevents soil compaction and encourages healthy microbial activity.
- Useful for improving the texture of heavy clay or sandy soils.
Moisture Retention
- Absorbs and holds water, gradually releasing it to plant roots as needed.
- Supports plants that require consistent moisture, such as ferns and leafy greens.
- Improves overall water efficiency and reduces the need for frequent watering.
Supports Nutrient Uptake
- Holds essential nutrients like calcium, potassium, and magnesium in the root zone.
- Reduces nutrient loss through leaching in container-grown plants.
- Enhances the performance of fertilisers and soil conditioners.
Vermiculite Available Bag Sizes
- 5 Litre Bag: Handy size for indoor growers, seed trays, or balcony gardens.
- 100 Litre Bag: Suitable for large-scale use, market gardens, or nursery operations.
Vermiculite Common Uses
- Seed raising and propagation trays
- Hydroponic growing systems
- Potting mixes for indoor and outdoor plants
- Microgreens and baby leaf production
- Soil improvement and moisture control
Whether you’re growing herbs, vegetables, microgreens, or houseplants, vermiculite is a valuable medium that improves water retention, nutrient availability, and soil aeration. Made in Australia and offered in multiple bag sizes, it’s a practical choice for gardeners of all scales.