I've been given the following quest:
Seedlings BFF Crack your knuckles and administer a gentle but authoritative petting to 7 different Seedlings.
--but I can't tell what constitutes a seedling. I've petted several trees that are clearly not fully matured, including a couple that I've grown myself -- but it's not showing as any progress in fulfilling the quest.
If anyone can clarify what defines a seedling, I'd be most grateful.