Japanese knotweed treatment in Glasgow
If you've found Japanese knotweed in a garden or on a site in Glasgow, professional treatment is the way to stop it spreading and to satisfy a buyer's surveyor or mortgage lender. We can introduce you to one vetted knotweed specialist who covers your property in Glasgow.
Beatrice Vasey is a horticulturist, not a knotweed treatment company. We introduce you to one vetted knotweed specialist and are paid a referral fee by that business.
Knotweed rules in Glasgow
- Your council
- Planning and council land in Glasgow sit with Glasgow City Council. On private land, controlling knotweed is the owner's job, not the council's.
- The law
- A wider offence than in England. Since 2012 it has been an offence in Scotland to cause any plant to grow in the wild outside its native range, which includes knotweed. Having it on your land isn't an offence, but spreading it is, with fines of up to £40,000 on summary conviction.
- Disposal
- Knotweed waste is likely to be classed as non-hazardous waste. It must go with a registered waste carrier to an authorised landfill, and you must keep the waste transfer notes for two years, as NetRegs guidance for Scotland explains.
- Local note
- A NatureScot invasive plant strategy for the Clyde catchment upstream of the Glasgow Tidal Weir (2019) names Japanese knotweed as one of three priority species.
Where knotweed spreads around Glasgow
Knotweed spreads mainly from small pieces of rhizome or stem moved in soil, on tools and machinery, or by water, which is why it lines rivers, railways and roadsides. In Glasgow, gardens and sites backing onto the River Clyde, the River Kelvin and the Forth and Clyde Canal are worth checking each spring, and soil brought in for landscaping should come from a known source.
Treatment options, timing and costs
Most gardens in Glasgow are treated with a herbicide programme over at least three growing seasons. Building sites usually need the faster option of excavation, or burial on site.
| Option | When | Typical cost |
|---|---|---|
| Survey and management plan | Any time of year; easiest to identify from late spring to autumn | Survey about £100 to £350; a guarantee adds about £150 to £750 |
| Herbicide treatment programme | Late summer to autumn, after flowering; September to early October often works best | About £500 to £3,000 for a typical garden stand, over the whole programme |
| Excavation and removal | Any time of year | About £4,000 to £20,000 for a stand under 50 m² |
| On-site burial | Any time of year, after notifying the regulator | About £3,000 to £15,000 |
| Root barrier | Any time of year | Quoted per site |
Typical prices from published cost guides. Your specialist quotes for your property.
Your knotweed specialist in Glasgow
We pass each Glasgow enquiry to one vetted knotweed specialist who covers your property. You get an email naming them before your details are shared, and they survey and quote you directly. We are paid a referral fee by that business, as set out in how our partner network works.
We also arrange knotweed treatment in Edinburgh, Newcastle upon Tyne and Durham.
In Glasgow we can also introduce you to specialists for bat surveys, ecological surveys, tree surveys, tree surgery and landscaping, all listed on our Glasgow page.
Japanese knotweed questions in Glasgow
Is it illegal to have Japanese knotweed in my garden in Glasgow?
No. Having it on your land isn't an offence. Scottish law makes it an offence to cause any non-native plant to grow in the wild, so cuttings and soil must never be dumped, with fines of up to £40,000 on summary conviction.
Will knotweed stop me selling or mortgaging my home in Glasgow?
Not if it's managed. A buyer's surveyor is likely to note it, and a specialist survey, management plan and insurance-backed guarantee give buyers and lenders the reassurance they look for.
Will I need other surveys for planning in Glasgow?
Possibly. If knotweed is on a development site, plan treatment or excavation before work starts so machinery doesn't spread it. A planning application may also need an ecological survey in Glasgow, which records invasive plants on the site.
Get a knotweed treatment quote in Glasgow
Tell us where the knotweed is and what's going on. Beatrice reads every enquiry.