Osaka PU-katsu hints playful green culture with compost umbrellas and home habits

Osaka’s community hub PLAT UMEKITA is revealing a series of new hints for a sutainable lifestyle with “PU-katsu,” a year-round programme that treats sustainable living as play rather than preaching.

For the rainy month of June, the structure will break into three weeks. Week 1 is “Know”: an expert explains how to cut real-world impacts. Week 2 is “Share”: participants compare notes on their routines, spotting quick wins others have road-tested. Week 3 is “Try”: everyone takes action in a workshop, turning talk into practice. Organisers call this blend of learning and fun “ethical-tainment,” insisting that joy prompts behaviour change faster than guilt.

The first edition in June, “Tsuyu and Time at Home,” uses tsuyu (rainy season) that keeps people indoors. On 18 June, a representative from H2O Retailing will outline a 100-household compost experiment that has already reduced kitchen waste by about 40% and generated nutrient-rich fertiliser for local planters. Anyone wanting to replicate the system will leave with step-by-step tips: keep the bin well aerated, balance food scraps with shredded paper and harvest compost every six to eight weeks.

A week later, on 25 June, attendees will map their own “little ethics,” from refilling shampoo bottles to unplugging devices overnight. Seeing everyday actions on a single sheet of paper often reveals low-effort swaps that trim energy or plastic use without denting comfort, the kind of marginal gains that, multiplied across a city, move climate targets noticeably.

The month closes on 30 June with a vinyl-umbrella makeover. Japan buys roughly 80 million clear umbrellas a year, many abandoned after one downpour. By decorating a plain brolly with scrap paper, participants add personal value that encourages reuse. The workshop doubles as a design lesson: adding stories and craftsmanship to a cheap product can extend its life more cheaply than recycling.

Tickets cost ¥500 to ¥1,000 per session or ¥1,200 for the bundle. The compost talk is free. Every gathering ends with informal networking and an invitation to a shared Slack workspace so ideas live beyond the venue. Note that these events will be conducted in Japanese.