Apple Seedling and Grow Lights
So I have 3 one-month old apple seedlings, 1 one-month old cherry seedling, and 1 one-month old apricot seedling. I spouted them all and they are now all in their own pots. My question is, How close should these plants be to the bulbs of my grow light? I've heard that plants should be about 4in from the bulbs but I wasn't sure if that was only for veggies and herbs. I'm not too informed about trees at the moment.
As a side note, I know that most if not all fruit bearing trees are grafted. I'm simply growing these to grow them.
Thanks for any help.