I'm sorry about the possible off-topic, but I don't know where else to write. Explain why it is returning null, please

Getplantfromdatabase is a suspend function so when you log the value in the init block it is null because it has finished before the suspend function get the value

You should put your log code after

plant.value = getPlantFromDatabase(key)

inside

uiScope.launch

. In this case it will be guaranteed that your suspend function has been completed.

Also you shouldn't have to switch to IO context because room will handle the threading for you.