I've had no experience with windmill palms but, I have the opportunity to transplant a 4' and possibly a 8'. How are the root system, what size root ball do I need? Also when would the best time to do this? In general how do they do when transplanted. Thanks
You might want to try contacting the PNWP&EPS - Pacific Northwest Palm & Exotic Plant Society - a wealth of knowledge available http://www.hardypalm.com/hpi.php