Natural Agriculture Question! Does anyone reading this thread have any knowledge of which plants (crops or weeds!) may help the germination, growth and cropping of Japanese vegetables? Add 'prevent disease and pest attacks' to that list! I am planning initially to grow Shiso, Daikon, Mizuna, Gobo, winter-dormant Nira, Shungiku. Mitsuba, Mioga, Naga-imo, Udo and Sansho. There is a lot of general advice about companion planting, green manures, cover crops etc but I have found nothing specific to Japanese or Chinese vegetables. Surely these practices have been trialed and perhaps are used, in Japan and China? I have been trying to find a contact in Natural Agriculture in Japan..... Currently considering: buckwheat and Phacelia tanacetifolia, but suspect species native to Japan and China must exist and perform a better role. Thanks for any advice you may have, otherwise I guess I'm the one who'll be doing the research