The orange one does not have any official name, so I named it Ipomoea coccinea 'Aurantia' as it is a mutant of Ipomoea coccinea.
Yes, MG are invasive indeed especially in tropical locations where they can become a real nuisance, I get entangled in vines while harvesting seeds in ravines and sometimes feel like a fly caught in a giant web!
Great article, JJ, and I love morning glories. I was lucky enough to receive some new seeds this spring, and can hardly wait for them to grow.
I too love your orange one, and will begin my search for it right now.
Merci, mon ami!
This orange vine is an annual with small development, it would not grow bigger than one or two meters, here it starts growing in march-april, flowers in may-june-july and fruits in july-august-september and is gone by november. May june means winter here, with short days (less than 12 hours light). So I do not know how it will do in more temperate areas, like it may flower in shorter autumn days.