i could see a bit of a "temporary alliance" thing for Evergreen. Say some big demon army is attacking and you need all the allies you can get, getting Evergreen and her daughters to help out could be an interesting moment. You / others don't like working with her, but you have bigger fish to fry and she's not doing anything to harm you in the moment, so you put any misgivings you have to the side for a bit and deal with her when the immediate problem is dealt with.