Hey Tom,
Welcome to the group. Most plumies do only have 5 petals (the norm), but there are some cultivars like Hong Kong that have 6 or more petals, candy strip can also pop 6 petals. There are some cultivars like Bali whirl that have 10 petals, so basically normal is 5 but there are some cultivars that are anomalies.

You should attend the South Coast Plumeria Society Meeting as your not that far from it.

Cheers

Newbie here too, and I got a seven petal flower last year, waiting anxiously to see what this year brings :)

COOL! Great examples from you both!! Tom and alisarom -did all of the blooms on those inflos have more than 5 petals? Freak, do you think that thrips or the like could cause that or strictly genetics?

On mine, the 7 petal bloom was the exception, not the rule.

Here is a picture of Hong Kong which is suppose to have 6 petals, sometimes 7 or 8 depending.

and 10 petal Bali W.

Same tree...

Like James said, anomalies.

@ James, I didn't know you were "The Plant Pusher." Kind of a hip holy name.....I dig it!

Thanks all for your feedback. There were only 2 flowers on that inflo last season (I got it as a cutting that year). One was a 6 petal and the other was a 5 petal. So it sounds like I just happen to find a 4-leaf clover. Looking forward to what this season will bring.

freak4plumeria - thanks for the suggestion on the South Cost Plumeria Society. I looked them up and I think they meet in Anaheim now. Little bit further away than Huntington Beach but still only a hop and a skip away. I'll try to attend some of the meetings.

alisarom - that's a neat looking 7petal one! So used to seeing 5 that it almost feels like that 7 petal one is a different strain/species or whatever the word is. For some reason that one stands out more than the 6-petal Hong Kong pictures that Freak shared. Those Hong Kong's didn't pop out as looking different. The Bali Whirl double-flower does stand out though, Might have to hunt one down now...:)

I have a 7-petal flower! Usually mine have 5 petals. These were buds which went dormant over winter and bloomed just a few days ago once it warmed up here in Chicago. It was strange bc i had only 2 leaves but a bunch of flowers! They are so fragrant :)

I live in the high desert of central Oregon and planted a cutting from a friends plant from Socal just hoping to grow a noce indoor plant to remind me of my time spent in Hawaii. the start took root and produced leafs for 9 years until this spring when low a behold she started to bloom! it has been blooming for a few weeks with 4 and five petals flowers and today i noticed a 6 petal bloom