Reply To: Organic soil Kisetsu-en Shohin Bonsai Europe › FORUM › Q&A › Organic soil › Reply To: Organic soil 23. January 2022 at 18:32 #59533 Stéphane CostergParticipant Thank you fror your answer Geoff. I use pomice and akadama too, with my regular bonsaï , but i asked myself if it was enough for shohin because summer are really hot in Paris and i think a bit of organic soil could help.