Great advice pirl!!
@Cantillon, I have a feeling your wife will love the new Cherry Trees, I was convinced that mine was ornimental and then last year found a cherry, then I found out that the one I have does not produce cherries till the tree is five years old, then I found out that the birds will eat them and leave presents all over your car.
Oh, is this the Dahlias Forum? ...My bad.
Love your potting mix, glad you found what works for you and your dahlias are thriving. Do not be intimidated by the knowledge here, just read and observe for a while, join in when you feel comfortable.
As for your garden, good that you got everything planted, at lease it is growing and you can rearrange some stuff later. That's what I am doing right now, well when ever I can get out. It has been cold and I am just getting over a sinus infection. But I get out when I can and am determined to accomplish one thing every day. that is going to be my new years resolution, I just started early that's all. LOL.