Wow!
Now that's a container rose garden!!
Gorgeous Joanne
Do you get new roses each season, aka treat 'em like annuals, or do you over winter somehow--in that greenhouse maybe, or a little of both?
Re: the mag-sulfate and fertilizer--if I were to grow roses in containers with potting soil, yes I'd be on board and everything I said in the other thread about epsom salts in my area would be irrelevant