Ausperl horticultural vermiculite is ideal for adding to your soil or potting mix to help aerate it, increase its waterholding capacity and provide many other benefits. Vermiculite is often mixed with perlite or applied alone to soils and is especially popular for seed raising, propagating from cuttings and plant transplant mixes.
General Vermiculite Information:
Vermiculite has a wide range of uses across numerous industries. It’s commonly found in potting mixes, lightweight concrete, fire-resistant construction products, and intumescent coatings. It is also approved by the UN for packaging and safely transporting hazardous liquids. Additionally, vermiculite is used as a texturiser in paints and coatings, and more recently, in nanocomposites for films, coatings, and barrier technologies. When heated, vermiculite uniquely expands or exfoliates into worm-like shapes.
Disclaimer: This item has been repackaged and put in a box to make it cheaper to freight for customers outside of Sydney. The perlite is emptied from its bag and put in a plain cardboard box. No bag is provided because it's too large, and we're trying to reduce the parcel size to make it cheaper to freight.
Main benefits:
- Inorganic, inert and sterile.
- Non-abrasive.
- Ultra lightweight.
- Free from disease, weeds and insects.
- Slightly alkaline (neutralised with peat).
- High cation-exchange (or buffering exchange).
- Excellent aeration characteristics.
- High water holding capacity.
- Insulating.
The following grades are supplied in either 100-litre bags.
- Grade 1 (0-1mm) Not Available.
- Grade 2 (2-4mm) For Sale.
- Grade 3 (3-6mm) For Sale.
- Grade 4 (5-8mm) For Sale.
Suggested Mix Ratios (% by volume)
| APPLICATION | PEAT or PERLITE | AUSPERL VERMICULITE | GRADE | |
| Seed Raising
Quick Germination |
Fine Seed | 0% | 100% | 2 |
| Large Seed | 0% | 100% | 3 | |
| Seed Raising
Slow Germination |
Fine Seed | 50% | 50% | 2 |
| Large Seed | 25% | 75% | 3 | |
| Softwood Cuttings | On Open Bench | 25% | 75% | 2 |
| Under plastic | 50% | 50% | 3 | |
| Transplant Mixes | Block Mix | 80% | 20% | 3 |
| Seeding Wedgemix | 80% | 20% | 2 | |
| Potting Mixes | Bedding Plants | 75% | 25% | 3 |
| Vegetable Plants | 60% | 40% | 2 or 3 | |
| House Plants | 75% | 25% | 3 | |
| Hanging Baskets | 50% | 50% | 3 | |
| Nursery Stock | 80% | 20% | 3 | |
| If wetness is a problem, substitute up to half of the vermiculite with AUSPERL perlite (grade P500) AUSPERL vermiculite is not recommended for azaleas, rhododendrons and other lime-allergic plants. Excessive compaction and overwatering can impair results. |
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Frequently Asked Questions:
Q. What are the dimensions and weight of this vermiculite bag?
A. The dimensions are 34 x 23 x 103cm, and it weighs 9kg. For shipping purposes, this item is 25 cubic kilos.
Q. Is this product sterile, as I'm using it to hatch reptile eggs?
A. According to the manufacturer, this vermiculite is produced using very high temperatures and is therefore totally sterile.