Is there inhabit of thick bamboo trees in Seattle area?

Answer 1

Contact Bamboo gardens of Washington at
http://www.bamboogardenswa.com/index.html#top
They are near Marymoor Park but not on the main Redmond Fallcity Hwy. They are on a parallel rd but there is a sign at the turn.
The other Bamboo nursery I know is in Ballard
http://www.bamboogardener.com/bamboo.html