I did not realised on my mother's pergola, two type of passiflora made their home there until finally the scarlet passion flower made a debut. The other passiflora species also has very showy flowers. However, the late bloomer is shockingly scarlet when it made a showy entrance from afar one of the pergola corner seems to be in blaze (probably exaggerated too much).
Each string of stems fill with buds. But on the same string of stem the bud does not bloom at once. Instead they opened one by one making the blooming season long and if you miss them or away, you still have a chance to enjoy them.