possible to root a cutting without heat mat?
I just received a pre-callused cutting from a friend and I'm planning to attempt to bag-root it. I do not plan to root cuttings often enough to feel the need to buy a heat mat, is there any other way I can help my cutting along? what If i put the bag in a cup and put the cup in a bath of hot water so the cup heats up? would that be enough? Thank you for the help!