Can Haitang be grafted on Lagerstroemia indica?

I can't. There are many fruit trees that can be grafted with begonia, which can be used to graft pear trees, apple trees, mountain stators and so on. , or some other species of begonia tree, which is close to it, has stronger affinity and higher success rate. Pay attention to the time and method of grafting. If it is carried out in spring, it is suggested to adopt branch grafting method and choose bud grafting method in autumn, which can improve the survival rate.