"I'm just renting" Remember your rental agreements states, "Any
Damage done to the property during the tenancy, that is not present at the beginning of the tenancy agreement, must be rectified before the ceased date of the agreement."
Therefore you can do what ever the hell you like during the agreement, yet it must be returned to the original state as per the initial contract description.
It would benefit to ask your landlord first, but I rent and have three swiveling turntable posts concreted into the ground, a yard consisting of over 200 trees, semi-permanent- irrigation/ fertilization/ benches/display areas, in ground growing areas etc etc etc. Whenever an inspection is due the real estate asks about the posts/growing area etc and whats going on... I answer with the same phrase every year, "Nothing is permanent, it is all easily removable and nothing has been
damaged or will be."
Damaged is the key and
only word that is applicable.
I am a land owner, the only rule I keep is
"Pay the rent and don't damage my property beyond your own repair".
Just be sure you can remove it, if the time comes and go as far as you want. You should see my place, my landlords are more than happy, with my occupation of the property.
2 secs I'll find the link to the posts I have in the ground.

Regards, Mitchell.
"It is one thing to shape a tree into form, but when you are able to convincingly deceive ones perception of reality, something much more is accomplished than just a simple bonsai."
"In a perfect world, we would all be giants and all plants Bonsai."
"Grow big, finish small."
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