Hi forum!

A few years ago, i received some seedlings for what turned out to be the most amazing, majestic flowers.the friend who gave me them thinks they are in the impatiens family but is not sure. the leaves seem to indicate such BUT: they thrive in the sun and it is very hot here. each year they seed but have never reached the glory of that first year. I would like to purchase seeds if anyone knows the exact name. (by the way, it was obviously a mixed bag since the colours included, dark orange-red, pink, white and lavender.