Apple tree blossoms and columbine flowers

So here's a picture of the apple tree in my backyard:

In the past few days it's blossoms are opening up.  They're beautiful!  Below are some pictures of them:

Also, I have found numerous bluebell plants throughout the yard.  Here are some with lemon balm growing around them:

This is my columbine plant that I bought at the expo a couple of weeks ago.  It's flowers are opening up.  I was hoping for a blue and white star pattern, like you see on Colorado license plates, but I like this mauve color, too.

My two blueberry plants seem to be surviving so far (the new one that I just planted is the one on the left).

Apple tree

I was weeding the backyard today and I found an apple tree growing near the Earth Machine.  The tag was left on it and it said that it was some kind of semi-dwarf hybrid.  It has leaves and buds on it.  It's in a shady spot so it must be okay with partial sun.  It was a happy find.  Thanks again, previous people who lived here!  The light wasn't very good to take a picture, but I'll post one later.