welcome mark! you may need to protect the canes in the winter like i do, to get a florocane crop. in late fall, once they have gone dormant, lay your canes gently down. pin them down w/ with wire fabric staples then cover with 12in. of
straw. cover that with landscape fabiric or burlap.
staple down also.in early spring , when the willows are waking up, unbury them and prune out any damaged canes. fertilize. im much colder than you so if i can over winter them here so
should you. good luck!