plant in McBryde garden, Kauai, Hawaii

this is a small shrub on the large lawn near the garden entrance.

 

Calotropis procera. This species is supposed to be fragrant (according to Wikipedia). Calotropis gigantea seems to be more common in gardens (and I think the only one I've seen), is not fragrant. I don't know if they are both called Crown Flower, or if only C. gigantea gets that name.

 

Thank, Wendy. I believe that it was fragrant and did remind us of milkweeds.

 

I saw one of these with fruits today in a fenced private yard in Honolulu on my way up to Kapi'olani Community College. I'm glad you posted this so that I knew already what it was!