We have this plant in our garden. which was planted in a pot but the roots broke open the pot and got into the concrete below and now it is more like a tree than a plant
I had only known hawthorn to be an ideal plant for creating bonsai which art I really do not like. You have to stunt the growth of the plant.
I now know hawthorn is a medicinal plant and every part of the plant is used to prepare medicine One can even eat the berries. It is supposed to be good for lowering cholesterol, lowering blood pressure and good for digestion. I am not confident though to eat those fruits.
This link has more information
Do you take advantage of medicinal plants that grow in your garden? in your garden.