Healthy Plants, Guaranteed – If your plant doesn’t thrive, we’ll replace it.
Healthy Plants, Guaranteed
If your plant doesn’t thrive, we’ll replace it.
Packed for Plant Health
Carefully prepared to arrive healthy and ready to plant.
Australia-Wide Delivery
Delivered directly from our nursery network.
Real Nursery Stock
Grown by professional Australian nurseries.
Yates 4.5L Gnat Barrier - 4.5L is backordered and will ship as soon as it is back in stock.
Unlock More Discounts - More Plants, More Savings!
Get up to $100 OFF on your order .
| Discount Level | Cart Total |
|---|---|
| $10 OFF | $200 - $999 |
| $50 OFF | $1000 - $2999 |
| $100 OFF | $3000 or more |
Can I pick up my order?
No. We operate as an online-only nursery and do not offer customer pickups.
Can I delay delivery?
Yes. Add your preferred delivery timing in the order notes at checkout.
What if I’m not home for delivery?
Your order will be left in a safe location at the delivery address.
What if my plants don’t arrive healthy?
Every order is covered by our 30-Day Satisfaction Guarantee.
Covered by our 30-Day Satisfaction Guarantee for complete peace of mind.
Get personalised advice from an experienced garden designer and plan your garden with confidence before you buy.
Personalised recommendations tailored to your space, climate and goals, delivered by email.
Order online and save time.
Sourced from the nearest centre and shipped direct.
Every order backed by our guarantee.
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Yates 4.5L Gnat Barrier is a natural, physical solution designed to protect plants from fungus gnats while improving moisture retention in pots. Made from abrasive pumice granules, it forms an effective surface barrier without using chemicals.
✔ Effective Gnat Control - Abrasive granules create a physical barrier that deters fungus gnats.
✔ Natural Pumice Granules - Chemical-free solution suitable for indoor and outdoor plants.
✔ Reduces Surface Water Loss - Helps limit evaporation from potting mix.
✔ Improves Moisture Retention - Keeps water available for plant roots when needed.
✔ Easy Surface Application - Simple to apply directly on top of potting mix.
✅ Indoor Plants - Ideal for houseplants prone to fungus gnats.
✅ Pots & Planters - Forms a protective top layer over potting mix.
✅ Seedlings & Young Plants - Helps protect vulnerable root zones.
✅ Greenhouses & Growing Areas - Supports cleaner, healthier growing environments.
Product Type: Gnat barrier and soil surface treatment
Volume: 4.5 litres
Material: Natural pumice granules
Application Depth: Minimum 3 cm
Function: Physical barrier and moisture retention
Preparation: Ensure potting mix surface is level.
Application: Apply granules evenly to a depth of at least 3 cm.
Watering: Water as normal once applied.
Maintenance: Top up as needed to maintain coverage.
How does this product stop fungus gnats?
The abrasive pumice granules prevent adult gnats from accessing the soil surface to lay eggs.
Is this safe for plants?
Yes, it is a natural, chemical-free product that is safe for plants.
Can this be used on indoor plants?
Yes, it is ideal for indoor pots and planters.
Does this replace insecticides?
It provides a physical barrier rather than a chemical treatment.
How thick should the layer be?
Apply granules to a depth of at least 3 cm for best results.
Supplied in a 4.5L bag and packed for easy handling and storage.
Keep fungus gnats at bay naturally with Yates Gnat Barrier and enjoy healthier potted plants.
Select size