The Joy of Balcony Living Balcony Gardening in Tokyo: How to Grow Ryukyu Indigo and Enjoy Japan Blue Dyeing FukunyanHey AYA-jii, that plant used for blue dyeing—“Ryukyu Indigo”—can we really grow it in Tokyo?AYA-JiiSure you can.... 2025.09.01 The Joy of Balcony Living