How to revive an old Rosemary bush

Question

I have a 40 year old Rosemary, which is about a foot high. It hasn’t been doing very well, and it’s dry and woody. It’s the end of winter here. Should I cut it right back and hope for the best? Does it need fertilising?

Thanks Melanie

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Answer 1

I would do a soil test to determine if the plant needs any help or fertilizer.
They do prefer a soil with a ph of 6.o to 7.0

Here are some pruning articles that should help shape of your plant.

https://www.gardeningknowhow.com/edible/herbs/rosemary/pruning-rosemary.htm
https://www.gardeningknowhow.com/edible/herbs/rosemary/rejuvenation-of-rosemary.htm