Even if you could get the Growfruit, you can't unlock the pots since Jasmine (and the option to give to her) needs to be present, the same could apply to the Sugar Skull Display Case where the option to Call Jasmine needs to be available. However, you can enter Free Build Mode, place the two Challenge Pots and/or the Sugar Skull Display Case, and then save a Room, or in Get to Work you could place the items on sale and buy it as another Household. The Eggs and possibly the Sugar Skulls will require using the Gallery or a saved Room to obtain them but the sale method could also work.
