Rich Roots Fertilisers
Mealworm Frass Fertiliser – Plant Feed Sachet Box – 12 x 10g
Mealworm Frass Fertiliser – Plant Feed Sachet Box – 12 x 10g
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Tear. Sprinkle. Water. Grow.
Our Plant Feed Sachet Box is the easiest way to use Rich Roots mealworm frass fertiliser.
Each box contains 12 pre-measured 10g sachets of 100% natural mealworm frass – the nutrient-rich castings left by mealworms. Just tear open a sachet, sprinkle around your plants, gently mix into the soil, and water in.
No scooping. No guessing. No mess.
Designed like a plant care ritual, each sachet gives your plants a simple natural top-up of nutrients, organic matter, beneficial biology, natural chitin and a lab-tested carbon content of 38.5%.
Best for
- Indoor pot plants
- Herbs and small edible plants
- Balcony gardens and courtyards
- Desk plants and office plants
- Plant parents who want simple plant care
- Plant gifts, hampers and starter gardening kits
- Renters, apartment growers and small space gardeners
- Anyone who wants frass without measuring from a larger pouch
Why choose the sachet box?
The sachet box is our most convenient and giftable format.
Each sachet is pre-measured, tidy and easy to store, making it ideal for beginners, plant lovers, office plants or anyone who wants a simple feeding routine without measuring from a larger pouch.
One 10g sachet will generally feed 2–3 small pots (10–15cm), approximately one medium pot (20–25cm), or part of a larger pot application. For a larger indoor plant collection, simply use more sachets as needed.
How far does one box go?
Coverage varies by pot size, plant needs and application rate.
As a rough guide, when applying one sachet every two weeks, one box can feed 2–3 small pots for approximately six months. When applying two sachets every two weeks across a larger small-plant collection, one box will last approximately three months.
These are general estimates only. Applying smaller amounts or feeding every four weeks will make each box last longer.
The plant care ritual
Tear open a sachet, sprinkle it around your plants, lightly mix it into the topsoil and water it in.
Simple, clean and easy to remember.
Why plants love it
Rich Roots Mealworm Frass Fertiliser helps support:
- Healthy soil biology
- Stronger root-zone activity
- Slow, natural nutrient release
- Better soil structure over time
- More active living soil
- Regular plant growth and resilience
Mealworm frass also contains naturally occurring chitin, which may help support plants’ natural defence response as part of a healthy soil ecosystem.
Lab-tested nutrient profile
Our mealworm frass fertiliser has been independently tested for key nutrients and soil-relevant properties.
| Parameter | Result |
|---|---|
| Nitrogen | 3.71% |
| Phosphorus | 1.13% |
| Potassium | 1.88% |
| Sulfur | 0.25% |
| Carbon | 38.5% |
| Calcium | 0.19% |
| Magnesium | 0.66% |
| Sodium | 0.02% |
| pH | 6.0 |
| Electrical conductivity | 4.6 dS/m |
| Moisture | 12.2% |
It also contains naturally occurring trace elements including iron, manganese, zinc, copper, boron, molybdenum, cobalt and silicon.
Please note: As this is a raw natural product, nutrient levels may vary slightly between batches.
How to use
For established plants, tear open one sachet and sprinkle around the base of your plants. Gently mix into the top layer of soil and water in well.
As a simple guide:
- Small pots: half to one sachet across 2–3 small pots
- Medium pots: around one sachet
- Larger pots: one to two sachets
- Herbs and small edible plants: apply lightly and water in
- New planting: mix a small amount through the planting area before watering
Reapply every 2–4 weeks during active growing periods, or as needed based on plant size, season and soil condition.
Application tips
A little goes a long way. For best results:
- Water in after applying
- Avoid direct contact with delicate stems
- Use less around seedlings or sensitive plants
- Start lightly and increase gradually if needed
- Use more sachets for larger pots or bigger plant collections
- Store unused sachets sealed in the box in a cool, dry place
What is inside?
Each box contains:
12 x 10g sachets of 100% raw mealworm frass.
That is 120g net of natural mealworm frass fertiliser in pre-measured, easy-to-use sachets.
No synthetic fillers. No added chemicals. No unnecessary extras.
Made and packed locally in Queensland, Australia.
Storage
Store sachets sealed in the box in a cool, dry place. Keep away from excess moisture.
Which box bundle should I choose?
Choose 1 box for a simple plant care routine, a small collection of pots or a thoughtful plant-lover gift.
Choose 2 boxes for a larger plant collection, extra sachets on hand or one box to keep and one to gift.
Choose 4 boxes for hampers, gifts, market purchases or several plant lovers.
Choose 6 boxes for the best price per box, larger collections or regular gifting: you get 15% off and it qualifies for free shipping on one-time purchases.
Regular top-ups
Want to keep your plants fed without having to remember to reorder?
Choose Subscribe at checkout for regular top-ups every 1, 2 or 3 months. You can save up to 5% on your selected box or bundle price, and you can pause, skip or cancel any time.
A simple guide:
- Every month: best for larger indoor plant collections or regular gifting
- Every 2 months: best for regular home plant care
- Every 3 months: best for occasional top-ups or smaller plant collections
Subscription discounts are applied at checkout. Free shipping eligibility is calculated based on the final order value after discounts.
Delivery, packaging and returns
For packaging notes and information on delivery, shipping and returns, please visit our Delivery, Shipping & Returns page.
Packaging may vary from photos shown.
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I loved the sachets of worm meal and the personalised service. The pot plants seem to have improved however if we had better weather I would have seen more improvement.