Hakone Botanical Garden of Wetlands

Overview

The Hakone Botanical Garden of Wetlands preserves a rare high-altitude marsh ecosystem in the Sengokuhara highlands. Over 1,700 species of native wetland and alpine plants grow in this carefully maintained area of natural beauty.

Highlights

• Alpine Wildflowers: Seasonal blooms including skunk cabbage in spring, irises in summer, and golden grasses in autumn.
• Boardwalk Paths: Elevated wooden walkways wind through the wetland, keeping feet dry while offering close views of marsh plants and wildlife.
• Bird Watching: The wetland habitat attracts numerous native bird species, especially during spring and autumn migration.

History

Established in 1976 to preserve the Sengokuhara wetlands, which had been shrinking due to development. The site is designated as a prefectural Natural Monument and serves both conservation and educational purposes.

Visitor Tips

• Best Season: Late April through June for the most dramatic wildflower displays; autumn for golden sedge grasses.
• Mosquitoes: Bug repellent is advisable in summer months.
• Duration: 45–60 minutes.