Pluhův bor

Pluhův bor is a national nature reserve tucked into the Slavkovský Forest in western Czechia, entirely within the cadastral territory of the village of Nová Ves, between the settlements of Prameny, Mnichov, and Nová Ves u Sokolova. Covering roughly 88 hectares, the reserve was declared in 1970 to protect one of the country's rarest botanical phenomena: plant communities that grow only on serpentine rock.

What makes the geology here so unusual?

The reserve sits on serpentinite bedrock known locally as the Mnichovské Hadce, spread across the southeastern slopes of the Vlčí hřbet ridge. This formation is part of a much larger serpentine body within the Mariánské Lázně metabasite complex, which happens to be the largest serpentine area in the entire Bohemian Massif. Serpentinite is unusually rich in magnesium and poor in calcium, creating soil conditions that most plants simply cannot tolerate. Over thousands of years, this harsh chemistry has produced a highly specialized set of plant communities found nowhere else in the region's more typical rock formations.

What plants grow in the reserve?

The reserve's most valuable resident is Cerastium alsinifolium, a chickweed species that is a true endemic — it grows exclusively in the Mnichovské Hadce and nowhere else on Earth. It's one of only about 20 endemic plant species known in the entire Czech flora, which alone gives Pluhův bor botanical significance well beyond the borders of Czechia. Alongside it grow other rare and protected species, including field pennywort, wood pink (Dianthus sylvaticus), stone bramble, and several fern species adapted to the punishing serpentine soils. Beyond the flora itself, naturalists also value the reserve's relict pine forests and its spring-fed wetlands, which add further habitat diversity to a relatively compact protected area.

How can visitors experience the reserve?

An educational nature trail called Mnichovské Hadce runs along the reserve's southern and eastern boundary, allowing visitors to learn about the area's geology and rare plant life without disturbing the most sensitive parts of the protected zone. The trail is a good way to understand both the deep geological story behind the landscape and the fragile botanical treasures it shelters, and it also makes a convenient starting point for further walks through the Slavkovský Forest, a region also known for nearby spa towns such as Mariánské Lázně.

Frequently asked questions

Where exactly is Pluhův bor located? The reserve lies in the Slavkovský Forest in western Czechia, within the cadastral territory of Nová Ves, between the villages of Prameny, Mnichov, and Nová Ves u Sokolova.

When was the reserve established and how large is it? Pluhův bor National Nature Reserve was declared in 1970 and covers approximately 88 hectares.

What is the reserve best known for? Its unique plant communities growing on serpentine rock, including the endemic Cerastium alsinifolium, found nowhere else in the world outside the Mnichovské Hadce.

Can visitors walk through the reserve? Yes — the Mnichovské Hadce educational trail runs along its southern and eastern border, letting visitors explore the area without entering its most strictly protected sections.