what determines which soil is for outdoors and which is for indoors? Most brands of soil have potting soil for indoors and soil for outdoors. Is there any reason why I shouldn't use an outdoor soil indoors? The reason I ask is that i have been looking for miracle grow potting mix 21-7-14 which I can't find anywhere (even the internet) and the closest mix to that is the miracle grow outdoor soil with 15-5-10 Which I would like to try. If you are going to post about miracle grow burning plants etc. save your breath I have heard it before and I want to try it anyways. Thanks
michaelpeg Reviewed by michaelpeg on . indoor, outdoor soil question what determines which soil is for outdoors and which is for indoors? Most brands of soil have potting soil for indoors and soil for outdoors. Is there any reason why I shouldn't use an outdoor soil indoors? The reason I ask is that i have been looking for miracle grow potting mix 21-7-14 which I can't find anywhere (even the internet) and the closest mix to that is the miracle grow outdoor soil with 15-5-10 Which I would like to try. If you are going to post about miracle grow burning plants Rating: 5