Tidcombe Lane Fen in Tiverton was designated as an SSSI in 1988 as a good example of a type of wetland fen habitat that that is now nationally scarce and rare in Devon. The 10.7 hectare site occupies the shallow valley of the Ailsa Brook, a tributary of the River Lowman. The soils are mainly waterlogged throughout the site, supporting fen meadow vegetation. In the wettest parts of the site there are significant stands of tussock sedge, sometimes standing over one metre in height. The combination of this, the lesser pond sedge dominated fields, and the wet woodland shows that this is an undisturbed and wild habitat with a complete reliance for its extent and quality on the continuous uncontaminated water supply and high water table.
Over one hundred species of flowering plants have been recorded. Among the most characteristic are common sedge Carex nigra var.subcaespitosa, meadowsweet Filipendula ulmaria, wild angelica Angelica sylvestris, purple loosestrife Lythrum salicaria, fleabane Pulicaria dysenterica, water mint Mentha aquatica, marsh-marigold Caltha palustris, marsh valerian Valeriana dioica, ragged robin Lychnis flos-cuculi and southern marsh-orchid Dactylorhiza praetermissa. Less base-rich conditions are indicated in places by the presence of bog pimpernel Anagallis tenella and bogbean Menyanthes trifoliata..
The fauna species list for the SSSI includes Nationally Protected Species, including otters, hazel dormice, harvest mice, and bats. Brown hairstreak butterflies have been recorded on the site in the past and, in 2025, not far from the site. The undisturbed nature of the site means that a wide range of native breeding birds, deer, reptiles and amphibians flourish.
We always welcome volunteers to help with our monthly volunteer meetings on site, where we tackle a range of conservation management tasks. Join a friendly group of all ages, who carry out manual maintenance tasks in and around the SSSI site.
E-mail: tidcombefen@outlook.com
Address: 6 Tidcombe Lane Newte House, Tiverton, EX16 4DZ, Devon, United Kingdom
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