Swansea & Gower invasive plant guide
SwanseaWeed Control
M4 Junction 47 corridor guide featuring Japanese knotweed
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Transport corridors · Corridor

Part of the Landore, Morriston & Plasmarl area guide

M4 Junction 47 corridor

A practical local guide to habitats worth checking and the plants most likely to need careful identification.

Map of M4 Junction 47 corridor

51.6712, -4.0311

The map shows the general area only. It does not mark confirmed invasive plant sites or individual properties.

About the area

M4 Junction 47 corridor facts

M4 Junction 47 corridor is a movement corridor through Swansea, with verges, embankments and regularly disturbed ground alongside it. It is part of Landore, Morriston & Plasmarl within the City and County of Swansea.

  • Carries regular traffic or rail movement through the Swansea area.
  • Verges and embankments are cut on a maintenance cycle rather than left permanently untouched.
  • Repeated soil disturbance during works is common along routes like this.

General local background, kept separate from the plant guidance below.

Local habitat

Where to look

Verges, embankments, drainage channels, retaining walls and disturbed ground are the main places where invasive or escaping garden plants can establish around M4 Junction 47 corridor.

This is habitat guidance, not a claim that a particular property or site is infested.

Plants to recognise

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