Q.Trumpet Vines
My trumpet vine bloomed for the first time this year (second full year). I noticed a lot of ants being attracted to the blooms. Is this normal and is there a spray I should apply?

Inspect your vine for signs of other pests. Ants can be attracted to the residue of other pests, called Honeydew.
I would treat the vine with Neem Oil.
These links have more information for you.
https://www.gardeningknowhow.com/ornamental/vines/trumpet-vine/bugs-on-trumpet-vines.htm
https://www.gardeningknowhow.com/plant-problems/pests/insects/controlling-aphids-and-ants.htm
https://www.gardeningknowhow.com/plant-problems/pests/insects/keeping-ants-off-flowers.htm
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm