Is there a shop that sells organic fertilizer (especially for orchids) in Gothenburg?

Hello, I'm trying to find a shop that sells organic fertilizers in Gothenburg. Does any of you know of any? Or can I find fertilizers at the supermarkets? I need special fertilizer for orchids and then just a general fertilizer for the other plants. I know I could order them online, but I would prefer to go to a shop in the city. I'm living in a sublet apartment in Strömmensberg and the owner trusted us to take care of her plants and my partner and I don't want to let her down. I am only walking to get around, so I can't go too too far, but I'm willing to walk maybe 10 kms (I can also take the tram lol). Thank you in advanced for your help if you know of any place to get organic fertilizer! :)