Q.Over Winter My Mandevilla
I would like to overwinter my Mandevilla into a dormant state but I don’t want to bring the bugs in.. I read you can drench with water but my question is can I just repot it in fresh dirt and cut it back?
Certified GKH Gardening Expert
Yes, repotting will get rid of any eggs or bugs in the soil. And cutting back mandevilla will reduce any bugs. You may still want to spray the remaining foliage with Neem oil to get rid of anything else. Here is how:
https://www.gardeningknowhow.com/ornamental/vines/mandevilla/winterizing-mandevillas.htm
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm