Oh how beautiful!!! I can't think of a more beautiful setting then to have a wedding in an outdoor garden. I have never been to the garden you are referring to but from the photos it looks like they have had experience in weddings there. I am always concerned with the weather. The day I got married was beautiful. Just as I got to the church it started raining. As I was waiting to walk down the isle thunder sounded and the lights went out in the church. They soon came back on but the groomsmen began practicing their a cappella humming of the wedding song.
Whatever you decide, Best wishes to you!!
Chessie