View Full Version : Cypress toxicity?

11-22-2006, 07:34 AM
Checking to learn what kind of issues are related to cypress sawdust.

anyone have problems with this? And is cypress dust compatible with food garden compost?

(I remember someone putting walnut sawdust in the garden, couldn't grow anything worthwhile for years! :eek: )

11-22-2006, 07:37 AM
you can put cypress in your compost pile but it better be pretty hot. cypress just loves adverse conditions. other than that I have had no problems using it and getting beautiful crops.

11-22-2006, 08:08 AM
Thanks, Gary.

How about skin/respiratory sensitivities?

11-22-2006, 08:21 AM
I think any wood in compost is a bad idea in the short term because its decomposition requires nitrogen, robbing the compost of significant benefit.

11-22-2006, 09:58 AM
I usually top sawdust with cow manure and seaweed to get it going. gets hot.

Brahm Thexton
11-22-2006, 06:53 PM
Interesting that you should ask, only because I am having the same problem. Cypress is listed as a low toxicity wood, but it is a sensitizer which means you become more sensitive to it the more you use it. It makes my eyes all red and itchy... yuck. It's oils have actually been proven to be an effective insecticide against ticks, fleas and mosquitos.... go figure.

peter osberg
11-23-2006, 10:50 PM
A friend used bags of my yellow cedar(a cypress) planer shavings as garden compost in his flower beds and it basically killed his garden; although it works great as a filler for dog beds as it seems to kill the fleas. peter

11-24-2006, 05:38 PM
Thanks, Peter.

I might just use it for an herbicide at the base of the fence.

Maybe it will have some repellant effect on the chipmunks that are feasting on my strawberries....

11-25-2006, 08:47 PM
I'll be making lots of it:


I spoke to a boatbuilder today who was horrified this cypress was going to be used for house siding.....:eek: