i have since replanted the thai basil in a big pot. what i did when those branches broke, tied them back together and it survived. then something else happened after that, the plant topple down as the weight of the branches were too heavy. to i decided to replant them in a big pot. i think i sort of damaged its roots when i removed it from the raise bed. it dropped 50% of its leaves. hope it will survive. it easily wilts now.