Lots of good info and love all the photos.
We live less than an hour from Biltmore
http://www.biltmore.com/visit/...
and they have lots and lots of gardens and yes, they change their bulbs every year.
I thought they changed the bulbs just because they could - I had no idea why. They do give their discarded bulbs to their employees which is nice.
I learned a lot in your article Larry - thank you.