"...Cultivate, on private property by the owner, lawful occupant, or other lawful resident or guest of the private property owner or lawful occupant, cannabis plants for personal consumption only, in an area of not more than twenty-five square feet per private residence or, in the absence of any residence, the parcel."

That's all Prop 19 says about it!

My read: Each resident (or guest!) may have a maximum of 25 sq ft at each location.

That's pretty wide open.