Horikiri Shōbu-en (Iris Garden) 堀切菖蒲園

Horikiri Iris Garden is located in Tokyo's Katsushika ward, on the banks of the Arakawa River. It features 6,000 Japanese iris plants, which typically bloom from late May to mid-June. The garden has been recognized since the Edo period for its ideal environment for water irises.

Source: kanpai-japan.com ↗, read 2026-09-10