I impulse bought a dwarf cherry tree in a pot from TicToc shop last December, and planted the apparently dead stick that arrived in a 14 inch pot. To my amazement it appears to be thriving-it blossomed and produced 4 whole cherries! It’s now about 75cm high.What should I do to give the best chance of survival? Should I re-pot it in a bigger pot and if so, when? Or should I leave well alone. Please talk to me as if I’m in Reception!