What an incredible space to have a wedding. My husband and I graduated from UW, but we were completely unaware of this hidden gem of a venue behind the university driving range. We held a traditional Chinese Tea Ceremony, wedding ceremony, and reception at the Center for Urban Horticulture (CUH). It is an excellent place for a moderate sized wedding - ours was 150ish people - and there was so much room to roam (great for those families with kiddos!)
We had no problems booking the venue after a tour with Britney Para, a helpful and upbeat venue manager at CUH. She guided us through the various possibilities on where to hold each ceremony and how past weddings have flowed. She was clear with us from the start of a few key points: We were responsible for mostly everything, she would request help for chair setup, etc. but we should essentially treat our venue rental as a community center rental. They will be there to open and close the doors, but you cannot expect any more. We were fine with this, as we worked with a rental company that helped with setup, teardown, etc. The price of booking the entire venue was very reasonable, especially for Seattle.
CUH uses a preferred catering list, but to deviate from this list only costs $200. We opted to use a different caterer and it was not an issue. They also offer the use of AV and electronic equipment for an added nominal fee if you want to have a slideshow or video. Be aware that there is an extra fee on top of the normal venue fee ($400ish) to use the Goodfellow Grove, but for us, we fell in love with it and had to use it for our wedding ceremony! The Goodfellow Grove, in my opinion, elevates the wedding ambiance because it gives that earthy, green PNW vibe that we all know and love ;)