A very large group of rosemary bushes (20 ft in diameter) in a city park was trimmed in an extreme manner - to the ground in an effort to kill the plants - by the parks dept. Is it possible to regrow the plants from the root structure in ground or do we need to replant? If the root structure will regenerate, what is best way to regrow the plants?
Rosemary – Help After Extreme Cutting
Certified GKH Gardening Expert
As long as the roots are alive, they will send up new growth. This article will help determine if the plant is still alive: https://www.gardeningknowhow.com/plant-problems/environmental/how-to-tell-if-a-plant-is-dead-and-how-to-recover-an-almost-dead-plant.htm