ooh, lovely!

what size pot is that. mine are in 2 gallons or biggers.

mine have been in 30s lately and are doing fine. might be the size of the pot

you can also give it a bit of bloom booster and see if that jump starts it

Its a small 3 or 4 inch pot, but thats just to start them, they are going in the ground. The roots are just to the bottom or on some you cant even see the roots. So the pots are not restricting them.
Thought I might hurt them with fertilizer being so small, guess I can try it on 1 & see how it goes.
ty

i have given mine fertilizer when they still have their first true set of leaves. with yours flowering it just may jump start it. i give bloom booster and miracle grow. both liquid just enough to wet the soil.