Cashel is home to a very diverse flaura and fauna.  Some articles contain more information so please click on the title to continue reading.

A reasonable population of Atlantic salmon, brown trout and eels has been recorded for the Cashel Burn by David Brown of Edinburgh University, and the other larger burns are likely to be similar.

Eleven species of butterfly have been observed during monitoring work to date. Of these the pearl-bordered fritillary is the one of most conservation interest. Dragonflies and damselflies occur on moorland pools.

Red, roe and fallow deer are present in the general area and all three species have been seen on Cashel. Red deer frequent the higher ground and arc thought to move through the site between the FC forests to the north and east and Montrose Estates land (Buchanan Castle) to the southeast.

The previous owner reported finding badger setts in several places as well as seeing otters in the Blair Burn, and there have been more recent sightings of both mammals as well as pine marten in the area. Foxes, brown hares, rabbits, moles, field voles, grey squirrels and mink have all been observed or reported as present on the site.

The breeding bird community is not known in detail but monitoring work to date indicates it is typical of what would be expected for the habitats represented at Cashel.

Most plants and plant communities on the site are relatively common and do not have special significance. However two rare plants have been identified: Bog orchid, Hammarhya paliuhsa and Tall bog sedge, Carex magellanica. A substantial grant from the Bank of Scotland supported detailed baseline ecological monitoring and publication of a report {Cashel Native Woodland Index) for the three years 1998 to 2000.