One of the largest of London’s six remaining lowland bogs can be found tucked away on Wimbledon Common

This valley mire, located just north of Iron Age fort remains, developed on a gravelly slope where seepage of acidic, nutrient-poor spring water creates gullies and pools on the underlying clay.

If you don’t know it’s there it can be easily overlooked when walking through Wimbledon Common, but once found provides a small oasis of calm away from the bustle of dog walkers, runners and cyclists. Farm Bog is mostly wet throughout the year, even in times of drought. The reserve is managed by Trust volunteers with support from Wimbledon & Putney Commons Conservators


Species you can see at Farm Bog

Invertebrates: Common darterwasp spider

Plants: Bogbean, lesser skullcap, sphagnum species, marsh pennywort, gypsywort, veilwort, purple-flowering marsh thistle

Reptiles: Common lizard


History of Farm Bog

This constantly wet habitat supports a specialised plant community which thrives in a rich peat layer that is more than two metres deep and was formed over a period of at least 6,000 years. An agreement has been in place since the 1980s between the Conservators and London Wildlife Trust whereby volunteers from the Trust undertake habitat management of the site. Since then this work has mainly consisted of controlling reed and scrub invasion, without which the bog would quickly turn into wet woodland.


Facilities at Farm Bog

There are no public facilities within the reserve but facilities including toilets and a cafe are provided elsewhere on Wimbledon Common. For more information visit


How to get to Farm Bog

Farm Bog is situated near the southern boundary of Wimbledon Common. It can be reached via the footpath that starts in the east from Sunset Road, or in the west from Robin Hood Road. Wimbledon Station is a 20-minute walk from Sunset Road.


Opening times for Farm Bog

The reserve has no restricted access and is open at all times.

Farm Bog


Accessibility at Farm Bog

There are no footpaths nor discernible boundaries. Because it is a fragile habitat people are not encouraged to walk over it, however it is within sight of the surrounding paths that traverse Wimbledon Common.


Status of Farm Bog

Within a Special Area of Conservation, Site of Special Scientific Interest, Site of Metropolitan Importance for Nature Conservation, and Metropolitan Open Land


Peaty Finders

Peaty FindersLondon Wildlife Trust has produced a report, Peaty Finders, highlighting some of the city's most precious natural gems; the remaining peatland habitats which once characterised large parts of England.

Originally, bogs covered seven percent of Britain, but their extent today has been greatly reduced.


Get involved at Farm Bog


Species and habitats

Standing water
Sphagnum Moss, Wasp Spider, Bogbean, Common Lizard

Nearby nature reserves

Spencer Road Wetlands
4 miles - London Wildlife Trust
Isleworth Ait
5 miles - London Wildlife Trust
Gunnersbury Triangle
5 miles - London Wildlife Trust

Nature reserve map

Reserve information

Wimbledon Common, near Robin Hood Road
SW19 5NR
Map reference
Great for...
lichens and mosses
Best time to visit
Mar - Nov
Get directions
Find out here
Public transport
Plan your journey
Opening Times
Open at all times
0.74 hectares
Site of Special Scientific Interest (SSSI)
Special Areas of Conservation (SAC)
Dogs must be on lead
Reserve manager
Tom Hayward
Tel: 020 7261 0447