Blue Sky Vine not blooming

[abc1003]

I planted blue sky vine in front of my house ( sw facing - so it gets a lot of afternoon sun ) about 2 years ago.
It grows profusely but never blooms. I have fertilized ( just once ). Any ideas?! I live in GA, zone 8a.

 

[cpp gardener]

My guess is that it (surprisingly) doesn't get enough heat for long enough to bloom. It's fairly tender, so frost really sets it back and delays blooming. Most Thunbergias prefer as much sun as you can give them so shade may be a factor as well.

 

[abc1003]

Thank you. I had high hopes for beautiful blooms! Any other ideas flowering vines that might work in this spot?