Environmentally aware gardeners will welcome this new organic herbicide, Slasher Weedkiller, after nearly 10 years of research and development. This extensive research programme was designed to control a broad range of weeds as well as moss, algae and lichen. You can spray it anywhere around the house and garden for effective organic control. It works on contact and rapidly burns and desiccates plants so you’ll see results within a few hours. Slasher Weedkiller is made from plant oils which have been turned into a substance called nonanoic acid. Nonanoic acid is also known as pelargonic acid and occurs naturally in plants (including pelgaroniums which explains the alternative name). While Slasher Weedkiller is a powerful herbicide it is still incredibly safe for the environment – it rapidly breakdowns in soils and is completely gone within a few days. Slasher Weedkiller contains no glyphosate and is Registered Organic and approved for use in organic gardens and farms.
Environmentally aware gardeners will welcome this new organic herbicide, Slasher Weedkiller, after nearly 10 years of research and development. This extensive research programme was designed to control a broad range of weeds as well as moss, algae and lichen. You can spray it anywhere around the house and garden for effective organic control. It works on contact and rapidly burns and desiccates plants so you’ll see results within a few hours. Slasher Weedkiller is made from plant oils which have been turned into a substance called nonanoic acid. Nonanoic acid is also known as pelargonic acid and occurs naturally in plants (including pelgaroniums which explains the alternative name). While Slasher Weedkiller is a powerful herbicide it is still incredibly safe for the environment – it rapidly breakdowns in soils and is completely gone within a few days. Slasher Weedkiller contains no glyphosate and is Registered Organic and approved for use in organic gardens and farms.
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The lowest price for Slasher Organic Weedkiller Concentrate 500ml right now is $28.98 at Aussie Gardener, compared across 5 retailers.
The all-time low was $21.45 on 5 Mar 2026 — today's price is 35% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 3 June 2026.
Slasher Organic Weedkiller Concentrate 500ml
Environmentally aware gardeners will welcome this new organic herbicide, Slasher Weedkiller, after nearly 10 years of research and development. This extensive research programme was designed to control a broad range of weeds as well as moss, algae and lichen. You can spray it anywhere around the house and garden for effective organic control. It works on contact and rapidly burns and desiccates plants so you’ll see results within a few hours. Slasher Weedkiller is made from plant oils which have been turned into a substance called nonanoic acid. Nonanoic acid is also known as pelargonic acid and occurs naturally in plants (including pelgaroniums which explains the alternative name). While Slasher Weedkiller is a powerful herbicide it is still incredibly safe for the environment – it rapidly breakdowns in soils and is completely gone within a few days. Slasher Weedkiller contains no glyphosate and is Registered Organic and approved for use in organic gardens and farms.
Environmentally aware gardeners will welcome this new organic herbicide, Slasher Weedkiller, after nearly 10 years of research and development. This extensive research programme was designed to control a broad range of weeds as well as moss, algae and lichen. You can spray it anywhere around the house and garden for effective organic control. It works on contact and rapidly burns and desiccates plants so you’ll see results within a few hours. Slasher Weedkiller is made from plant oils which have been turned into a substance called nonanoic acid. Nonanoic acid is also known as pelargonic acid and occurs naturally in plants (including pelgaroniums which explains the alternative name). While Slasher Weedkiller is a powerful herbicide it is still incredibly safe for the environment – it rapidly breakdowns in soils and is completely gone within a few days. Slasher Weedkiller contains no glyphosate and is Registered Organic and approved for use in organic gardens and farms.
Last updated at 03/06/2026 08:05:51
OCP Slasher Organic Weedkiller – Glyphosate-Free Herbicide for Fast Weed Control, 500ml concentrate
Delivery between 6–11 June $15.24
OCP Slasher Organic Weedkiller – Glyphosate-Free Herbicide for Fast Weed Control, 500ml concentrate
Delivery between 6–11 June $15.24
OCP | Slasher Organic Weedkiller Concentrate 500mL
Delivery between Fri – Tue $34.95
OCP | Slasher Organic Weedkiller Concentrate 500mL
Delivery between Fri – Tue $34.95
Slasher Organic Weedkiller (Size: 500ml Concentrate)
Delivery between 5–11 June $12
Slasher Organic Weedkiller (Size: 500ml Concentrate)
Delivery between 5–11 June $12
Weedkiller Natural 500ml Slasher Organic Weed Killer Concentrate
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Weedkiller Natural 500ml Slasher Organic Weed Killer Concentrate
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Slasher Organic Weedkiller Concentrate 500ml
Slasher Organic Weedkiller Concentrate 500ml
OCP Slasher Organic Weedkiller – Glyphosate-Free Herbicide for Fast Weed Control, 500ml concentrate
Delivery between 6–11 June $15.24
OCP Slasher Organic Weedkiller – Glyphosate-Free Herbicide for Fast Weed Control, 500ml concentrate
Delivery between 6–11 June $15.24
OCP | Slasher Organic Weedkiller Concentrate 500mL
Delivery between Fri – Tue $34.95
OCP | Slasher Organic Weedkiller Concentrate 500mL
Delivery between Fri – Tue $34.95
Slasher Organic Weedkiller (Size: 500ml Concentrate)
Delivery between 5–11 June $12
