Hi Dan,

I've got a row of Bridal Wreath that are at least 10-15 years old that
I keep trimmed to ~7-8 feet. They are in mostly shade over the summer
time and I take a foot off them each year after the bloom (which is
happening right now). Around my house on the south side there are LOTS
of examples in full sun that are HUGE and left natural with no
trimming. Maybe their growth is moderate compared to weeds and such,
but I take a foot off every year to keep them nicely shaped.