I figure you must be talking about Build/Buy mode, since there are no buttons to put a plant into inventory, or sell it, in Live mode. I loaded a save where I have several trees. These included apple, lemon, cherry, and Money trees. The option for moving them into household inventory appeared on all of these trees. I didn't specifically check avocado, coconut, pear, or Forbidden Fruit trees. I might do that later if I can find them in my existing saves.
Sorry I wasn't able to duplicate your issue. I'm using Windows 10, so it might be specific to MAC OS or even your specific operating system.
ETA: I found the saves I wanted and checked coconut, avocado, pear, Forbidden Fruit, Grow Fruit, and the Tree of Emotions. They all had the button to put them in household inventory and they went into the inventory with no problem.
