I cannot identify it, but it is certainly a beautiful vine. I will be anxious to know what it is.

Maybe a Blue Orchid Vine - Mascagnia lilacina
I agree with Carrie, it is beautiful.

Ruth, you're right -- that's it! How did you know? Have you had experience with it?

One source said it was native to Coahuila, Mexico and a relative of Barbados cherry. Also related to Mascagnia macroptera, yellow orchid vine. The seed pods are similar.

It's never produced seed pods that I've noticed, but I'll be watching for them this year.

Thank you Ruth.

Here is a link that might be useful: Results of blue orchid vine search ...

How's come gorgeous vines are always such thugs with a pretty face?

No, I don't have experience with it, just love vines and it's one I would like to have.
I do have the Mascagnia macroptera, yellow orchid vine.
It's new for me this year and I didn't get any blooms.

I have that vine. Jolana gave me my start. She called it potato vine. But blue potato vine has star shaped blooms. Mine is lavender, not blue. It grows on the dead redtip by the phone box in my back yard.

Kathy, the blooms are on the blue side of lavender. My camera makes it look more blue than it is.

What are the growth habits and blooming period of your vine?

It started blooming just a couple weeks ago. I did not pay much attention until this year, as that monster gardenia rose was in front of most of it. This year it has grown really long runners as does the butterfly vine. They are along the bottom of the shed.

Is the blue potato bush, and blue potato vine the same? Should they be planted in full sun? I have a feeling my bushes are planted in the wrong location. I have two planted under hugh oak trees. They hardly bloom, I have had them for several years. I am always having to trim them. If they are vines, that would explain why. Barbra

Roselee, it goes perfectly with the blue accents you have in your garden. :D

Omar

Sorry Barbra, I don't have any experience with the blue potato bush or vine. Hopefully someone else does and will tell you.

Omar, I wish I had closed the purple gate on the arch before I took the picture. I hesitate to close it at all because the way the dogs race around the yard they might not see it, run into it, and break their necks!

Blue potato bush is not the same as what Roselee posted.

Not the vine either...........

I have had both the Blue Potato Vine (Solanum crispum glasnerium) and the blue potato bush (Solanum rantonnetii) and I personally did not have good results with the blue potato bush. The blue potato vine, however, is one of my favorite vines.
I'm pretty sure the yellow butterfly vine is Mascagnia Macroptera, which is in the same genus as the Blue Orchid Vine (Mascagnia lilacina) that Roselee has in her photo. Unfortunately, It's almost impossible to accurately ID plants using common names and it usually leads to a lot of confusion. Whatever you have in your photo, Roselee is really beautiful.
Molly

Would you call this vine, hard to manage? does it take over wher you don't want it? It sure is pretty.

Mara, no it's not an aggressive grower at all. I had just decided I didn't want a vine growing on the wrought iron bird cage and I thought I had removed the shallow roots. But some of the stems that travel along the ground and root found their way to the arch. I may leave it with the coral honeysuckle. The honeysuckle is evergreen and Mascagnia lilacina is not so we'll see how that works out. Next spring I'll find some rooted pieces to pass around.

Barbra, I have the BP bush, it gets full sun. This year it did not bloom until about 6 weeks ago. It is blooming near the asters so they really look pretty together.

I'll go out and take a pic. for you (y'all).

k

My blue potato bush is going to get a severe pruning before it goes in for the winter..........it did bloom but has lost most of it's leaves and needs shaping as well. They are beautiful when they do bloom.

Blue Potato bush blooms.

It is the lime green leaves in the upper left in this view.

My blue Potato Bush (from Carrie) took a major hit from that hail storm back in June. It looked ok at first but then about 2 weeks later I noticed whole branches were dieing off.
I couldn't figure it out. I watered and watered. THEN I put my glasses on, duh!!!

The hail had damaged most all the branches and that's why they died. This thing was pretty big too. I had to cut it back to the base and start all over again. No blooms after that. I think it had a few before the storm. Its growing back, but pretty slowly I think due to the intense heat we had during the summer.

Last winter it bloomed in my garage in Dec and January! Then that awful snow and ice came and it quit. :(

I am giving mine a severe pruning before I put it away for the winter. It has looked ragged all summer although it did bloom. I love the color of the "blue" blooms, Kathy.......so very pretty.

I love that garden! Beautiful!

The "sneaky vine" is beautiful. I love blue and it looks so nice on your arch.

The vine is gorgeous but I love the trellis/arbor!