Tropical Milkweed (Asclepias curassavica) is an introduced species here. It’s become popular in part because milkweeds are food for butterflies, including Monarch Butterflies, whose numbers have been falling for some time. However, there are questions about whether planting Tropical Milkweed is a good or bad thing.
One concern is that Tropical Milkweed’s perennial habit might be disrupting the Monarch’s epic migrations. Another concern is that the plant hosts Oe (Ophryocystis elektroscirrha), a parasite that adversely infects butterflies, and that is passed down to subsequent generations. This parasite is more prevalent in non-migratory butterflies such as those in Hawaii, but it’s not clear whether Hawaii’s population is suffering in the same way as some of those on the mainland. Hawaii’s Monarchs primarily use Crown Flowers to lay their eggs.
Graham's Island 
You’ve got some great captures, Graham. Very interesting predicament with the butterfly. It seems that, like us, not everything we enjoy eating is good for us.
LikeLiked by 1 person
Introduced species are a tricky business, even with the best of intentions.
LikeLike
Very beautiful! But we must also take care of our lovely butterflies! 🦋🦋 ❤️
LikeLiked by 1 person
I don’t know how problematic this is here, but sticking with the native species is usually best.
LikeLiked by 1 person
What a shame because it’s a good looker!
LikeLiked by 1 person
It’s a fabulous little flower, but it’s usually best to stick with the native species.
LikeLiked by 1 person
Quite pretty but a pest for sure. I guess people think they are doing good 🙄
LikeLiked by 1 person
Milkweed, butterfly plant, must be good, but it’s never that simple.
LikeLiked by 1 person
Introduced species come with a lot of risks and are usually done without a lot of forethought. Great photo though and it’s certainly pretty.
LikeLiked by 1 person
Hawaii, sadly, is the poster child for exactly what you say. Too many introductions without thinking it through.
LikeLike
Despite the concerns, it is definitely a beautiful plant–reminds me of your sun rise/sets, Graham!
LikeLiked by 1 person
Yes, it’s very colorful and the form is interesting too.
LikeLiked by 1 person
That is so beautiful. Love the colours.
LikeLiked by 1 person
It’s a lovely flower for sure.
LikeLiked by 1 person
😄
LikeLike