
Sengokuhara, Hakone
Established in 1976, this unique botanical garden showcases over 1,700 species of wetland, aquatic, and alpine plants native to Japan. Wooden boardwalks guide you through beautifully preserved marshlands, offering a tranquil, flat walk with seasonal highlights like spring lysichitons and autumn foliage. It is a peaceful, nature-focused alternative to Hakone's busier hot-spring attractions.
Visit from June to July to see the rare, luminous blue Himalayan poppies in bloom, a major highlight for plant lovers.



