Fungus on cardboard Community › Community › General Gardening › Vegetables › Fungus on cardboard This topic has 1 reply, 2 voices, and was last updated 9 years, 7 months ago by charles. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts 30th December 2016 at 4:12 pm #37415 jjwrenParticipant I am using cardboard between my gooseberry bushes, and have just noticed that a fungus is growing from the cardboard. Is this anything to worry about? 30th December 2016 at 4:30 pm #37418 charlesModerator Mr Wren I would rejoice. Fungi which decompose cardboard are valuable in soil, all part of the matrix of transformers under our feet. Your soil sounds lively in other words! Author Posts Viewing 2 posts - 1 through 2 (of 2 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In