Product Overview:
Frass Fertiliser is an organic fertiliser made from mealworm frass—the nutrient-packed poop and exoskeleton remnants of mealworms. It’s a sustainable, eco-friendly product that improves soil health, promotes robust plant growth, and naturally deters pests.
Available in two sizes:
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1 Litre: Perfect for small gardens or potted plants
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5 Litres: Great for larger spaces or frequent use
How Frass is Produced:
Mealworm frass is a natural by-product of the mealworm farming process. Mealworms are reared in clean, controlled environments where they are fed a plant-based diet. As they grow, they excrete frass and shed their exoskeletons during moulting. This material is carefully collected, dried, and processed into a fine powder that’s rich in nutrients and beneficial compounds.
Because it’s produced as part of an existing farming process, frass is a highly sustainable option, making use of materials that might otherwise go to waste.
What’s in Frass Fertiliser?
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Nitrogen (N): Supports lush, green foliage and encourages vigorous growth.
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Phosphorus (P): Strengthens root systems, aids flower and fruit development, and boosts plant resilience.
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Potassium (K): Improves overall plant health, supports flowering and fruiting, and helps plants withstand stress.
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Chitin: Derived from mealworm exoskeletons, this natural polymer triggers plants’ defensive responses, making them less attractive to pests like aphids and caterpillars.
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Beneficial Microorganisms: Frass is rich in microbes that promote healthy soil biology, enhancing nutrient availability and supporting plant roots.
Scientific Benefits of Frass Fertiliser:
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Natural Pest Deterrence: Chitin, found in frass, stimulates plants to produce chitinase, an enzyme that breaks down insect exoskeletons. This natural defence system reduces pest damage and helps plants resist disease.
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Improved Soil Structure: Frass adds organic matter to the soil, improving aeration, drainage, and water retention.
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Microbial Boost: Encourages the growth of beneficial microorganisms that break down organic matter and release nutrients, enhancing soil fertility.
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Eco-Friendly Nutrient Recycling: Uses a zero-waste production process that turns mealworm by-products into a valuable resource.
How to Use Frass Fertiliser:
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Incorporate into Soil: Mix a small amount into your garden soil or potting mix before planting.
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Top Dressing: Sprinkle around the base of established plants every 2-4 weeks, then water in thoroughly.
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Compost Tea: Steep 1-2 tablespoons of frass in a litre of water for 24 hours to create a nutrient-rich liquid fertiliser for foliar feeding or soil drenching.
Pro Tip: Frass is safe to use directly on plants and won’t burn roots or foliage when used as directed.
Wiggly Tips for Best Results:
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Balance Applications: Use frass alongside compost or organic matter for a balanced fertilisation approach.
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Enhance Composting: Add frass to your compost pile to boost microbial activity and speed up decomposition.
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Combine with Mulch: Layer frass with organic mulch to retain moisture and slowly release nutrients into the soil.
Why Buy from Wiggly Wigglers?
At Lower Blakemere Farm in Herefordshire, we’ve been championing biodiversity and Since 2006, we’ve been supplying live mealworms and their by-products, proudly supplying individuals, wildlife enthusiasts, and leading organisations like the RSPB. Our commitment to quality and innovation has helped countless gardeners, wildlife supporters, and eco-conscious individuals make a positive impact.
As a British family farm, we operate on regenerative farming principles, integrating cattle and crops into a closed-loop system that reduces waste, enhances soil health, and supports wildlife.
By choosing Wiggly Wigglers, you’re supporting a small rural business with big ambitions to create a greener, healthier planet.
FAQs:
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How often should I use frass fertiliser?
Every 2-4 weeks during the growing season is ideal for most plants. -
Is frass safe for all plants?
Yes, frass is suitable for flowers, vegetables, lawns, and even indoor plants. -
Can frass deter pests?
Yes, the chitin in frass enhances plants' natural defences, helping to deter common pests.
Shipping Information
Our standard delivery charge is £4.95 - or FREE over £75!
(Next Day delivery is £7.95)
*GB mainland only and other exclusions apply. Please see below for full details.
| Area | Standard Delivery | Royal Mail (Live Orders) | Next Working Day Delivery |
|---|---|---|---|
| Mainland UK (excludes highlands) | £4.95 (Free over £75) | £4.95 | £7.95 |
| Falkirk, Aberdeen Perth Kirkwall Paisley and Inverness Areas (not islands), Isle of Man and Isle of Wight | £10.95 | £4.95 | N/A |
| For Scottish Islands, Outer Hebrides, Kilmarnock area, Paisley area, Chanel Islands and Northern Ireland | £15.95 | £4.95 | N/A |
All our orders are now despatched from our farm here in Herefordshire and so we’ve made a few changes. We will always despatch orders as soon as possible, but we do offer a next day delivery service (some restrictions apply) for those urgent orders.
Wiggly Standard Delivery (3 - 5 day delivery) £4.95 within mainland Britain - FREE OVER £75
If you don't mind when your order arrives... (within reason of course) Choose standard delivery and we will despatch your order with the best option for us. This may be APC Overnight, DPD or Royal Mail. You need to allow 2 - 5 days for delivery, and we can post to anywhere in mainland Britain. See below if you are in Highlands and Islands.
Next Week Day delivery for £7.95 to mainland Britain
If you need a guaranteed Next Day delivery then please choose the Next Day delivery option. If you order on a Friday then the delivery will be with you on the following Monday. Please note there are no deliveries on Saturdays, Sundays or Bank Holidays. You must order before 1pm for your order to be sent to arrive the following working day. If you order after 1pm then your order will be shipped on the next working day.
Important - Highlands and Islands
IF your order contains JUST live worms and is under 2 kilos - whether that’s composting worms, wax worms or mealworms you will have the option in the checkout to choose standard delivery at £4.95. This is because we can use Royal Mail for this service. Otherwise you will see the extra cost options for a courier to deliver your package – please note there is no guaranteed next day service to these areas so please allow extra time and track your package for information.
For Falkirk, Aberdeen Perth Kirkwall Paisley and Inverness Areas (not islands), Isle of Man and Isle of Wight the charge is £10.95
Postcodes:
AB37-38 AB41-56 FK 17-21 IV1- 40 IV52-54 IV63 KW1-14 PA21-40 PA80 PH15-50 IM1-9 IM86-87 IM99 PO30-41)
For Scottish Islands, Outer Hebrides, Kilmarnock area, Paisley area, Chanel Islands and Northern Ireland the charge is £15.95
Postcodes:
HS1-9 IV41-56 KA27-28 KW15-17 PA20 PA41-78 PH42-44 ZE1-3 BT1-99 JE1-5 GY1-10)
REFUNDS POLICY
Damaged or Faulty Goods
In the unlikely event that you receive an item that is damaged or faulty, we can offer a full refund within 60 days of the customer receiving the order. We simply require photographic evidence of the damaged/faulty item with tracking number within 7 days.
To return a damaged or faulty item is free of charge, please contact wiggly@wigglywigglers.co.uk with your name, address & order number and our customer service team will advise on the easiest way to send.
Once the item has been received and inspected by our customer care team, you will be notified that a refund has been issued and feel free to order the item again from our website.
In the case of LIVE WORMS these can’t be returned so in the unlikely event that they have arrived damaged please take a photo on the same day and send that photo straight away to our team wiggly@wigglywigglers.co.uk with a description of what the problem is and ensure you include your name, address and order number.
Once the photograph and description has been looked over by our customer care team they will get back to you to advise or issue a replacement or refund.
Returning an Order
Sometimes it just doesn’t work out. We get that. If you’ve changed your mind and want to cancel your order, we ask that you contact our sales team and return the item in its original packaging within 60 days to:
Wiggly Wigglers Lower Blakemere Farm, Blakemere, Herefordshire HR2 9PX
Unfortunately, we aren’t able to cover the cost of returning unwanted items, so the postage cost of returning these items is the responsibility of the customer. Please ensure that you obtain proof of posting as items being returned are the responsibility of the customer until the items reach our farm.
Once the item has been received and inspected by our customer care team, you will be notified that your refund has been issued. Please note the item must be returned with the original packaging, as new, unused, and free of defects.
Of course if you cancel your order before the items are shipped out a refund will be issued right away.
Please email us at wiggly@wigglywigglers.co.uk if you need any further information.
The Wiggly Story: Bringing Your Garden to Life.
Nestled in the heart of rural Herefordshire, within The Duchy of Cornwall estate lies Lower Blakemere Farm – the cherished home of Wiggly Wigglers and founder, Heather Gorringe. From its humble beginnings on Heather’s kitchen table over 30 years ago, our small but dedicated team is working hard on a legacy of sustainability and regeneration. Our farm isn’t merely a plot of land; it’s a dynamic hub where we’re aiming to balance food production with biodiversity and since we started our regenerative journey there’s a real focus on improving soil health and sustainability. Beyond our own endeavours, we’re passionate about sharing best practices and developing products designed to Bring your Garden to life.
The Wiggly Promise
At Wiggly Wigglers, it’s not just about sales (though we appreciate your orders and support for the farm!).
We’re here to offer a range of sustainable solutions that add fun to composting, boost biodiversity, and make bring your home and garden to live, whilst making the world just a little bit greener.
- Trusted: We’ve been here for over 30 years, with over 100,000 orders shipped.
- Try our products: We have a risk free 60 Day No Quibble Returns policy.
- Great Value: Buy Direct - we grow, mix, pack and ship direct from our farm in Herefordshire.
