It's a beautiful black-eyed Susan vine. If your Dad is in zone 6 as well, he should collect the dried seed heads and save the seed to sow next spring.

Rhonda

Thunbergia alata aka Black Eyed Susan. Not to be confused with Rudbeckias which go by that same common name.

Thank You both so much, Dad is 86 now and really gotten more into his plants. This will make his day!

You can usually also find seeds or plants in spring at most good garden centers. There are also white, yellow, red, pinkish and a sort of pink-orange blend varieties. You can surely find all these on the internet too. Best to your dad!

Tesmith,

That's so awesome that your Dad enjoys gardening so much. I hope you have many more years to spend with him, making memories while playing in the dirt and the sunshine :)

I lost my Dad a month ago. He wasn't into gardening but we could talk about sports and watch old George and Gracie and Jack Benny shows for hours on end while dunking cookies in a cold glass of milk. I'll always have those memories.