My Passiflora mixta and x exxoniensis have been blooming the last couple of weeks. They are very similar - especially in the photos as my camera (or operator :o) just does not seem to be able to capture the color and texture differences. I can say that up close and personal they are noticeably different.

Passiflora mixta - a much softer pink color

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Passiflora x exxoniensis a darker more vibrant pink - also the flowers tend to what to hang downward.

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