Reply To: Organic soil Kisetsu-en Shohin Bonsai Europe › FORUM › Q&A › Organic soil › Reply To: Organic soil 24. January 2022 at 17:28 #59536 Stéphane CostergParticipant Thank you very much Mr Albek, it is a good idea to use a carpet to keep the ambient humidity. And if, despite everything, I decided to use an organic substrate, would you have any advice on the choice of this one ? Thanks .