Can anyone tell me what this is? Garden Answers app is telling me mint possibly? Zone 5b, in full sun.

The square stems give it a good chance of being in the mint family (Lamiaceae) but doesn't necessarily make it a mint.

It looks like its about to bloom. Can you post photos (on this thread) when the flowers open? Does it have an aroma when you crush the leaves? What doesn it smell like?

As Daisy says, it will be easier when the flowers have grown out more. One possibility that comes to mind is Salvia x sylvestris.

salvia would be my guess too

Thanks for your replies! I'm impatiently waiting for the flowers to bloom I did crush a leaf and it has no distinct smell, so probably not mint. I will post a pic once the buds open up!

I was thinking Salvia nemorosa, but the leaves are scented on mine.. The pre-bloom clump looks the same on that and S. x sylvestris

Sherry, according to Missouri Botanical Garden x sylvestris is a cross between nemorosa and pratensis, and they list 'Mainacht' (May Night) as x sylvestris so it gets kind of confusing especially when they say some cultivars listed as x sylvestris may be cultivars of one of the parents:

http://www.missouribotanicalga...

"Salvia x sylvestris, often commonly called wood sage, is a hybrid perennial salvia that primarily results from crosses between S. nemorosa and S. pratensis. Some cultivars currently listed under S. x sylvestris have uncertain parentage, however, and may actually be cultivars of one of the parents rather than being hybrids. Moreover, The Plant List considers a large number of hybrids sold in commerce today under different names to be synonyms of S. x sylvestris, including S. x alpestris, S. x asperula, S. x collina, and S. x superba."

I recall 'Mainacht' looks slightly different to me than, say, 'Pink Queen' (other than colour I mean).

So ironically, I have what I think might be wood sage (salvia nemorosa?) in one of my beds as well. The two plants are similar but definitely not the same. The one I'm trying to ID is lower to the ground and lighter colored, and not fragrant. I'm very new to all of this as this is the first spring in our new home. It's so exciting seeing all these plants come to life!