How Saguaros Grow. Saguaros are a very slow growing cactus. In Saguaro National Park, studies indicate that a saguaro grows between 1 and 1.5 inches in the first eight years of its life. These tiny, young saguaros are very hard to find as they grow under the protection of a nurse tree, most often a palo verde, ironwood or mesquite tree.
A housing cooperative, or co-op, is a legal entity, usually a corporation, which owns real estate, consisting of one or more residential buildings; it is one type of housing tenure.
A collective is a group of entities that share or are motivated by at least one common issue or interest, or work together to achieve a common objective. [citation needed] Collectives can differ from cooperatives in that they are not necessarily focused upon an economic benefit or saving, but can be that as well.