Return to the Bamboo Forum | Post a Follow-Up

Bamboo in WA. State

Posted by pezabelle zone 4/5 (My Page) on
Mon, Feb 22, 10 at 18:51

We are looking for a very hardy variety which will do well in zone 4, the S W corridor between Seattle, WA. and Portland, OR.

We have a slight hill side that we would like to used bamboo as a barrier/windbreak, so we need a variety that will spread easily and the height of the plant is not a problem.

One question we do have is the depth of the root system. We have about 3' to 4' feet of soil before the roots will grow into our drain field which would not be a good thing.

Thank you in advance for any help you can offer!


Follow-Up Postings:

RE: Bamboo in WA. State

  • Posted by kudzu9 Zone 8b, WA (My Page) on
    Wed, Feb 24, 10 at 13:58

Bamboo does not send roots down into the ground like trees and other plants. I don't think I've ever had my bamboo go deeper than 12", although in unusual situations it might get deflected downwards to maybe 24". I just don't think this is an issue for you. Bamboo roots like to seek out warmth and they stay fairly close to the surface, rather than diving down. Since the rhizome system spreads out underground, but near the surface, it gets plenty of water and does not need to go diving to look for it, particularly in the Pacific NW.

There are many varieties of bamboo that will be hardy and evergreen in the geographic area you describe, but I am curious about why you are saying you are in Zone 4/5. I'm in the Seattle area and in Zone 8. Where exactly are you?

RE: Bamboo in WA. State

  • Posted by bboy USDA 8 Sunset 5 WA (My Page) on
    Fri, Feb 26, 10 at 22:22

Zone 4 as in Sunset Climate Zone 4. Most here are referring to USDA Hardiness Zones. If you compare Sunset and USDA maps Sunset 4-5 lines up with USDA 8 (in western WA).

There is a table of bamboos under Bamboo in the Sunset Western Garden Book, that might be of interest. The web site of The Bamboo Garden, near Portland has some nice pictures. There are multiple other bamboo specialists in the region, see the web site of The American Bamboo Society. Look at the Species Source List tables.

Local independent garden centers have also been stocking fairly big assortments, that include some interesting kinds.

RE: Bamboo in WA. State

Thank you both for the information. As to the zone, I took my information from a very old garden book. I will now update my book.

Thank you for the sources and I will do some looking around on the web. I like to know as much as I can about what I am planting.

As to where I live.....about 20 miles West of Chehalis along the Chehalis River. We are still rebuilding our gardens and yard after the river payed an unwanted visit in Dec of 07. In some areas it left behind a couple of feet of silt and lots of new weeds.

Again, thanks!


RE: Bamboo in WA. State

  • Posted by bboy USDA 8 Sunset 5 WA (My Page) on
    Sun, Feb 28, 10 at 13:57

For results of searching their web site for Sunset Zone 4 + Bamboo...

Here is a link that might be useful: Plant Finder Search Results -

 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!

Return to the Bamboo Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Please review our Rules of Play before posting.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.

Learn more about in-text links on this page here