Hello, thank you for your question. My name is XXXXX XXXXX I can help you with this.
Are you still a tenant at the property?
yes i am
If you are still a tenant of the property, I'm unclear why the landlord has any right at all to come in and have things removed from the property.
Until you leave the property, he has no right (as landlord) to come in to the property and remove anything at all, even from the garden.