Biological fertiliser · 10:10:10 NPK
WormGro Plus
Biological 10:10:10 for farms cutting back on synthetics
From$87.00
Down to $6.78 a litre by the 1000L shuttle

Worm cast liquid · Certified organic
The original worm cast liquid
A living worm cast extract with over one million microbial species, up to 80 chelated minerals and nitrogen-fixing bacteria. Certified organic, safe on every plant including natives, and a little goes a long way.
One 1L bottle covers about
Bulk order or a freight question? Call George on 0427 573 424
What it is
Every drum starts as high quality worm castings from one of the largest worm farms in Australia. A proprietary brew multiplies the biology rather than draining it off, then every batch goes under the microscope before it ships. What you pour on is a complete soil food web: nitrogen-fixing microbes, fungi, protozoa and up to 80 chelated minerals, ready to do the work synthetic fertiliser only imitates.
Minimum 1:10 with water. Never apply the concentrate neat.
One liquid, three jobs
The same brew at every scale. What changes is the dilution and the drum.

20ml in a 10 litre can per 10 square metres, every 2 to 4 weeks. Dip roots at 1:10 when planting.
1L single, twin and three packs. Free express shipping.

10 to 20 L/ha as a foliar or through fertigation, diluted at least 1:10 in water.
5L and 20L drums.

5 L/ha on pasture. 5L per tonne of seed as an inoculant at the auger or in a cement mixer.
200L drums and 1000L shuttles.
Sizes and prices
Every size is the same brew at the same strength. Pick the one that matches the ground you have to cover, or add a mix of sizes straight from the table.
| Size | Per litre | One covers about | Price | Add to cart |
|---|---|---|---|---|
![]() 1L bottle $29.70 $29.70/L · 500 m² of garden | $29.70 | 500 m² of garden | ||
![]() 1L twin pack $52.90 $26.45/L · 1,000 m² of garden | $26.45 | 1,000 m² of garden | ||
![]() 1L three pack $74.90 $24.97/L · 1,500 m² of garden | $24.97 | 1,500 m² of garden | ||
![]() 5L drum $67.00 $13.40/L · 1 ha (pasture) | $13.40 | 1 ha (pasture) | ||
![]() 20L drum $177.00 $8.85/L · 4 ha (pasture) | $8.85 | 4 ha (pasture) | ||
![]() 200L drum $1,377.00 $6.89/L · 40 ha (pasture) | $6.89 | 40 ha (pasture) | ||
![]() 1000L shuttle $4,777.00 $4.78/L · 200 ha (pasture) | $4.78 | 200 ha (pasture) |
Rates and directions
Minimum 1:10 with water. Never apply the concentrate neat. Seed: 5L per tonne of seed (500ml per 100kg).
| Use | Rate |
|---|---|
| Garden beds and lawnsEvery 2 to 4 weeks through the growing season. | 20ml in 10L of water per 10m² |
| PastureA 20L drum covers about 4 hectares. | 5 L/ha |
| Crops, orchards and vegetablesFoliar on green growth, or through fertigation. | 10 to 20 L/ha |
| Root dip at plantingA few seconds in the bucket is enough. | 1 part WormGro to 10 parts water |
Keep spray pressure under 80 psi and use low-pressure, high-flow nozzles
Apply late afternoon or evening when UV is lowest, ideally before rain or irrigation
Jar test before tank mixing with any other liquid input
Store cool and out of the sun: shelf life 12 to 24 months, never frozen
In the paddock

“Prior to application it needed 4 waters and produced an average of 25 bales an acre. After WormGro we needed only 2 waters and got up to 30 bales an acre. The plants look considerably stronger and healthier.”
Lucerne hay · 16 acres black clay · 20L/ha WormGro · nil synthetics
Watering halved, 25 up to 30 bales per acre
WormGro questions
Leachate is what drains off a worm bed. WormGro is brewed from finished castings through a proprietary process that multiplies the biology, which is why it carries over one million microbial species and more than 14,000 ppm of nitrogen from nitrogen-fixing microbes, up to 200 times the nitrogen of a typical leachate.
Many gardeners do. On farms, most growers supplement at least half of their chemical fertiliser in the first season and taper from there. The McLeods ran their lucerne on 20 L/ha of WormGro and no synthetics, halved their watering and lifted the cut from 25 to 30 bales an acre.
A 1L bottle covers about 500 square metres of garden per application, so one bottle is a season for most backyards. A 20L drum covers about 4 hectares of pasture at 5 L/ha. Orchards and vegetable blocks usually sit on 20L or 200L; broadacre programs run on 1000L shuttles, which are the cheapest per litre.
Always. The minimum is 1 part WormGro to 10 parts water, whether that is a watering can, a bucket for a root dip or a spray tank. Never apply the concentrate neat.
Yes. WormGro, the original worm cast liquid, is certified organic, so it is suitable for organic growers and for anyone who wants herbs, fruit and vegetables grown without synthetic inputs.
Five litres per tonne of seed, which is 500ml per 100kg. Tumble it through a cement mixer or drip-feed it at the auger so every seed is coated. The biology then goes into the furrow with the crop, which is the cheapest start to a program there is.
Order or ask
Order through the site or call George on 0427 573 424. Bulk orders start with a quick chat about the crop so the rate and the drum match. 1L packs ship express for free; drums and shuttles land in 5 to 10 working days.