If you have drying space it is MUCH better to pull the plant up from the roots and hang it upside down in a dark place with ventilation for 4-7 days and only then cut off the branches. All of the energy from the roots will go into the buds.

You can do the same thing to tomato plants that have a lot of green tomatoes but you know a winter freeze is coming. They will hang forever and produce red tomatoes one after the other for winter.