Try posting in the Houzz/GardenWeb Name That Plant forum. Far better than any ID app!! It also helps to let us know where geographically this plant is growing.

Thank you!

Oh sorry! I had it in my first attempt to post and missed it when it actually worked. I added it to my post.

Does it bloom? Act like a vine or gound cover?

No, not so far, no blooms. It isn't a vine. The app identified it as mandevilla and the leaves so look similar though they are more delicate than a mandevilla‘s and not exactly the same. i have had mandevilla plants.

It is definitely a shrub/tree. It grows multplie tall, stuff stems. i think it would grow into a thicket type sitch -if allowed.

I'm thinking either gardenia or something in Apocynaceae? Just a guess, I could be way off.

It‘s definitely not a gardenia. I’ve had gardenias and its leaves are paper thin, not thick and sturdy and much smaller. They are between a quarter and a silver dollar.

I looked at the Apocynaceae family and it wasn’t any if the obvious ones that came up. The description said they all have a milky sap and this does not.

The stems are woody and stiff, even the thin ones pictured above.

I don’t know what its called when a plant sends up lots of suckering stems (other than a thicket) but its that.

Before I dug it out, the longest stems were 6 ft tall and about 1 - 1.5 inches in diameter. Stands up tall but can be bent a little.

I take it back… it kind of looks like a natal plum that I found while looking more into the Apocynaceae family, as Jay sugggested. The leaves I see on mine are much more delicate, while the ones I am looking at online look thicker and more fleshy, but maybe that‘s just a matter of growing conditions?

No milky sap or thorns though.

Being quick to wilt when it needs water doesn't sound like a member of the Apocynaceae!

Thank you - I’m really just stumped. It

looks a little like a few things and nothing like most things. LOL.

I want to bring the small one inside, but not if it is toxic and I have a great spot for it outside for the bigger one, but not if it’s invasive/aggressive.

OMG you found it!!! I’ll test the leaves as you suggest but I am sure this is it! Thank you!!!!

Mine has never bloomed.

Thank you all for playing ” WTH is in my yard?” with me. I really appreciate it.

You're welcome, If I'm right! ;-)

Sounds like it's a very aggressive plant if not invasive. The second link I posted should tell you.

It is both aggressive and invasive. :(

Even though it's listed as 'invasive' I can't find anything about it being illegal.

You could call your local area agriculture extension office and they can give you useful information about the plant.

https://sfyl.ifas.ufl.edu/find-your-local-office/