from what I have noted the colored ones are shorter.. My white get very tall.. if there are just a few blossoms they are HUGE.. with more they are smaller and last a shorter time.
The Stan Hywet House in Akron is a classic tutor HUGE home that is great to tour. the gardens & greenhouse & butterfly house are also remarkable. they have a huge collection of the colored angels.. and they are about my height. (under 6). I suppose one can prune regularly but I like to see them grow out & the tall limbs show off the huge blossoms better.
I have some other pix of them SOMEWHERE.. will see if I can locate them..
I have had some of the purple datura, with the swirly, knotty looking blooms. I don’t like them nearly as well as the angel trumpets. My white angel trumpet didn’t make it through the winter but the peach has been going gangbusters for years. I can’t imagine how huge it would get if it didn’t die back to the ground each year! It is really late blooming this year because of our cool, late spring.
Stan Hywet house sounds wonderful! I didn’t know Angels would live that far north. Wonder if they take them inside for the winter?