Mandevilla.

They are all Mandevilla now. Some people still distinguish Dipladenia by certain physical traits but botanically they are not a separate genus. Similar to people calling some Rhododendrons Azaleas although botanically they are all Rhododendrons.

Mandevilla is a genus, not a family. It’s in the Apocynaceae (Dogbane) family. Dipladenia is an older name for some members of the genus, but no longer in use scientifically.

@User Yup: exactly! That’s the format Wikipedia editors use to keep track of outdated/archaic scientific names (like Dipladenia) so that they can preserve the links going to the page bearing the correct/current name.

It’s especially useful given the plethora of non-scientific gardening info out there on the web (like the Epic Gardening link above), which are often rife with outdated taxonomical terms.

It also helps ease the transition for amateur gardeners who may not stay current on the latest botanical taxonomy trends (like if you were searching for Russian sage under ”Perovskia” instead of its more current genus, Salvia.)

@User Happy to help! There’s always something new to learn!

That’s a pretty one, OP.

I have bushy Mandevillas in 8 pots this year, and two true climbers growing up obelisks.

Just wanted to chime in that even some of the bushier types still like to climb, if they get a chance.

This one found my decorative sprinkler nearby. :)

This one is reaching for the ligustrum:

They’re wonderful, hardy plants, enjoy!

Whichever name it is, would it be alright over the winter in a pot outside here in Southeast Coastal Georgia zone 8b?

I’m in Texas, 8a, and have to put mine in the (unheated) garage and hope for the best. I don’t have room for them anywhere else. They usually survive … I cut them back and let them go dormant. I might water just a tiny bit very sporadically, depending on the temps in there. They do not like wet feet, overwatering will kill them fast.

They’re tropicals, so cold sensitive, yes. Any steady temps under 50 degrees and mine start declining. A few chilly nights here and there aren’t a big deal, but when it stops getting above 50 - 60 time to put them in. For me, it’s usually late Oct to Nov, but that varies. Texas weather is weird.

You’ll notice when they aren’t as vibrant. If you have room in your house, they’d be very happy as a winter houseplant.

That’s my experience, anyway.