West-central Swansea
Montbretia removal in Brynmill, Uplands & Mount Pleasant
The orange garden crocosmia that has escaped into hedge banks and coastal paths all over Gower, forming solid corm mats that nothing else grows through.
How we work in Brynmill, Uplands & Mount Pleasant
- Free initial quote from your photos to help confirm it is montbretia
- Map the stand and its edges before work starts
- Contain roots, seed and soil so it can't spread
- Use the lightest method that works, with precise herbicide only where it is the safer option
- Return visits and written records until regrowth stops
Local picture
Dense Victorian terraces with shared back lanes. Knotweed moves along lane walls from garden to garden and is the most common cause of neighbour disputes and mortgage problems in Swansea.
Pressure from invasive plants here: Severe. Montbretia is less common here than elsewhere, so we check identification carefully.
Legal status: Schedule 9, Wildlife and Countryside Act 1981.
Map of Brynmill, Uplands & Mount Pleasant
Pins show places we cover and publicly reported records, not individual properties.
Landmarks and area facts
Mount Pleasant
Part of the City and County of Swansea, served by Swansea Council for waste, roads and public land.
Brynmill
Part of the City and County of Swansea, served by Swansea Council for waste, roads and public land.
Uplands
Part of the City and County of Swansea, served by Swansea Council for waste, roads and public land.
Singleton Park
Covers around 250 acres and includes the Swansea Botanical Complex.
Brynmill Park
Open to the public and maintained as green space within the City and County of Swansea.
Victoria Park
Open to the public and maintained as green space within the City and County of Swansea.
Places we cover
Local news & advice
Advice article
Montbretia in Swansea: When to Act and Why
Learn when to tackle invasive montbretia in Swansea and Gower, why its underground corms matter, and how to protect nearby plants during careful control work.
July 2025 · Swansea Bay News
Swansea, Neath and Llanelli named among Wales's worst knotweed hotspots
New figures from the national knotweed heatmap put Swansea city third in Wales with 936 verified sightings, Llanelli fourth with 693 and Neath sixth with 396. Wales as a whole records more than triple the knotweed density of England — which is why early reporting matters so much here.
Ongoing · Swansea Council
Swansea Council's knotweed treatment service is open for quotes
The council offers a paid treatment service for private land affected by Japanese knotweed, built on more than 20 years of treating its own land. Request a quote online and they aim to respond within 10 working days. Knotweed on council land should be reported to the nature team instead.
Ongoing · Swansea Council
Sign up for the council's knotweed email updates
Swansea Council runs a knotweed updates email list alongside its treatment FAQs — covering what to expect after spraying (die-back in about 14 days), safety around children, pets and ponds, and how repeat treatments over up to five years bring a stand under control.
September 2023 · Wales Online
North Hill case shows why knotweed between gardens needs early action
A Pleasant View Terrace homeowner spent over a year trying to get knotweed spreading from a neighbouring property contained. Knotweed crossing a boundary is a private legal matter — documenting it early and getting both owners into a treatment plan is far cheaper than a dispute.