Ideally when they are dormant. It's ok to cut roots during transplant.

in general.. willow roots rather freely ... google PROPAGATION OF CORKSCREW WILLOW ....

i would root up a bunch.. and then be done with a 26+ foot tall tree .... or two

is that really within your physical capabilities????

ken

I agree with Ken - these are awfully large to attempt to transplant easily. Too much work!! Willows do root extremely easily and there is still plenty of time before they go dormant to stick a few cuttings into the ground and have them take. Usually it is only a matter of a few weeks before they root.

You should know that if you remove the existing trees, just cutting them down may not solve your problem. Most willows, and corkscrews in particular, will resprout readily from the stump. And even cut trees without any noticeable new topgrowth may continue to produce roots that can invade plumbing. A corkscrew that was removed from my old property created a plumbing nightmare nearly 15 years after its removal. Best to dig out the stump and as much of the root system as you can manage.

Thank you for the advise!!

I've decided to try and transplant the trees(luckily we've got lots of hands to help)as well as to root some for back-up.

Have a wonderful day, we just had lovely morning showers and the sun is shining beautiful now.