Huge place with plants everywhere, so be prepared ...

Huge place with plants everywhere, so be prepared to walk, and drag a clunky wagon around to find your landscape need. Watch out because the sales staff are on commission, and if they feel you are not moving quick in your decision or looking to save a little instead of spending $5K+ they'll ditch out for the next customer.
I have found the best way to proceed to is to look through online sites and recommendations, as well as look around your own neighborhood for trees, bushes, and plants you like, and THEN go in and ask if they can help you identify the picture on your phone. They can then direct you where to go.
The older the tree the more you will pay - and like I said, these guys are super expensive. Look for something a little younger, and you'll save thousands on your purchase and most likely have a great looking plant very quickly.
I give 3-stars (and less) because they generally have what you are looking for, and if you want something to stand out in the yard versus getting what all the neighbors have from the local hardware store, then check these guys out.
They do have a "warranty" on plants (if you use their root starter), but you have to dig it up, and physically bring it back in to get it replaced. Each time they have NOT had the same plant, so I've had to make other decisions. Overall, their stuff dies just like anywhere, so don't get your hopes up too much.