Quicquid plantatur solo, solo cedit (Latin, "whatever is affixed to the soil belongs to the soil") is a legal Latin principle related to fixtures which means that something that is or becomes affixed to the land becomes part of the land; therefore, title to the fixture is a part of the land and passes with title to the land.
The purpose of the principle is to ensure that a purchaser of land does not acquire title or ownership of something which is not intended to pass with the land.
The principle also ensures that correct title does pass to a purchaser in case a previous owner attempts to assert that a fixture was a chattel and therefore belonged to them.
The principle has particular relevance to landlord and tenant law.
If a tenant is coming close to the end of his or her agreement and aims to remove a particular item attached to the landlord's property, the principle exists to remedy this.