The Japanese Knotweed Removal Bag

Japanese Knotweed DIY

Knotweed Bag for DIY disposal of knotweed

If you have chosen DIY Knotweed, the "Knotweed DIY Bag" can be used to dispose of any knotweed waste.

Our unique Knotweed DIY Bag is designed for legal DIY disposal of Japanese knotweed material off-site as "controlled waste"*.

*The Environmental Protection Act 1990 states that Japanese knotweed is classed as “controlled waste” and as such, must be removed by licenced organisations and disposed of safely at a licensed landfill site that can accept knotweed according to the Environmental Protection Act (Duty of Care) Regulations 1991.

Dispose of Knotweed Waste in Accordance to the Law

As Japanese knotweed is an invasive species of plant governed by various acts and legislation. It is a legal requirement to dispose of knotweed waste correctly. Failure to do so could land you with a large fine or even imprisonment.

Soils Contaminated with Knotweed Rhizome

Herbicide treatment of Japanese knotweed does not remove the plants' underground stem system (rhizome) from the soils. Following successful herbicide treatments, sections of rhizome may remain in a viable but dormant state, and could re-grow if disturbed.

For this reason, the Environment Agency deem ground containing dead or alive knotweed as 'controlled waste' if removed from site.

Japanese Knotweed Disposal

Once knotweed waste (controlled waste) leaves site or the property, it must be carried by a company with an appropriate Waste Carriers Licence, issued by the Environment Agency (E.A.). The controlled waste must be taken to a landfill site specially licenced by the E.A. to receive and dispose of Japanese knotweed.

How Does It Work?

  • Order your Japanese Knotweed DIY bag online
  • The Japanese knotweed DIY bag is sent to you
  • Contact us to collect your filled bag(s)

Technical Information

Knotweed Bag

Knotweed DIY Bag spec:

  • 90x90x90cm
  • Black FIBC
  • 4x25cm lifting loops
  • Top skirt, plain base
  • A4 document pocket
  • SWL:1000kg
  • SF:5:1

A bag will hold about 0.7m3 (slightly less than 1 tonne in weight)

For reference: 1m3 of consolidated soil weighs approx. 1.7 tonnes and 1m3 of loose (unconsolidated) soil weighs approx. 1.2 tonnes

Do not mound the subsoil as you must be able to place the cover skirt over the soil.

Types of Knotweed Bag Avaiable

The bag is 90 x 90cm square and once filled the height is about 90cm and holds approximately 0.7m3 of waste. We have three different bags for you to choose from:

Price Matrix

  Single Bag 2 to 5 6 to 10 11+
Stems Only £250.00 £230.00 £210.00 Please Call
Soil Only - Price on Request £0.00 £0.00 £0.00 Please Call
Mixed, Excluding Soils - Price on Request £0.00 £0.00 £0.00 Please Call

NB: All prices shown are per bag and include VAT and are subject to change. The knotweed contaminated soil bag will be heavy when full and you will not be able to move it. Ensure you fill it in a location close to the road, but on your property, ready for collection.

Order your Knotweed DIY Bag today

Place your order today using the order form, below. If you choose to pay via PayPal you will be forwarded to the PayPal website to complete your order. If you choose to pay by telephone you will need to complete the form and then call us on 0800 2300 165 to pay and complete the order.



Your Details

Your Address

Bag Info

Invoice Address

Waste Address

Payment Details

Total Price £

Includes a discount of £ For Bags @ £ Per Bag

If this is for a commercial site, we reserve the right to obtain a soil sample and charge for a soil test