Q.Can I split my lantanas?
I was wanting to give some of my lantanas to a friend. Can I dig up the root?
Since it sounds like your lantana is growing vigorously, you should be able to dig it up and divide it. Water well the day before, and dig it up early in the morning, so it's nice and moist. Take as much of the root as you can, and if the plant is large, you'll need to cut back the foliage. Here's some more information: https://www.gardeningknowhow.com/garden-how-to/propagation/propgen/dividing-plants.htm
https://www.gardeningknowhow.com/plant-problems/environmental/learn-how-to-avoid-and-repair-transplant-shock-in-plants.htm