You will be very near Waterloo Gardens. It is on Route 30 (Lancaster Ave)in Devon.

Here is a link that might be useful: Waterloo Gardens

Also right around the corner from Keystonr Gardens, although their focus i more on landscaping.

Here is a link that might be useful: Keystone

I have not been here yet but have been told this is a wonderful place to visit.

Here is a link that might be useful: Terrain

Chanticleer - (what happens when you type too fast)

These are great - I have only been to Waterloo, so the others are new to me.
I will check these out.
THANKS
Mike

Terrain is where Styers used to be.
Not terribly far is Redbud Native Plant Nursery if you are interested in great native plants, both woody and herbaceous. There are a few other nurseries along that route including Kirkpatricks with a great selection of trees and shrubs.

Here's Plantsource, to locate nurseries within a certain area.

http://www.plantsourcedelval.org/

Here is a link that might be useful: Redbud