I know around here when they put in a new walnut Orchard they put the saplings in a raised about 2 x 2‘ area! Probably raised up about a probably raised up about a foot! I think it’s a little better with pot plants to have them raised up a little! Less chance of the stalk remaining constantly wet and giving you problems! I transplant mine a little high! But you do have to watch the watering till the roots make their way down into the basement! Then it’s just normal shit! But most of the time I don’t know what I’m talking about! It’s all about creating illusion! Lol! How are you doing? Got any pics of your plants! Would love to see them, brother!

as usual I think you’re better off letting her do it her way! For the sake of family harmony!
