UK Landlord Forum / Life

Last Friday the gardener said that ," the land lord wants to know if she could take the potted plants in the front yard and put them in her yard". My wife said no, I like those plants there and they are part of the reason we chose to rent here. The Gardner said ok I will let her know.. Fast forward to today ( 4 days) later. I pull up to the house to find the potted plants missing. What are my rights