I Bought A White Mandevlla And I’ve Had It For Over Three Months And It Bloomed White Mandevlla And Now Three Months Later It Is

Question

blooming white flowers and red flowers how did that happen

Answer 1

This is typical of multicolored cultivars, like "Sundaville" so it could be possible that, while it appeared to be white, was only showing white flowers at the time.

My other thought would be that another seed made it into your pot and was not flowering until recently.

https://www.gardeningknowhow.com/ornamental/vines/mandevilla