If you have potatoe laying around use a potatoe as a plant medium to plant a rose brush. Using honey for a hormone is options. Cut a potatoe in half make a trench down the center and place the rose in the mi
ddle and enclose the other half to match the other side and plant. In about 21 days it will start to root. The best thing you can do is leave it along. Plant in a container the right size and depth so you won't have to repot it so soon. Delivery flowers or roses are very high quality plants over nursery plants. It best to try to regrow if possible.