FC (Mephisto): Dude, where's my cookies?

W⁵ - signs of flowering D29 (📆June 25📆) D35 (📆July 1📆) She is full definitely into the first stages of bloom now and seems to have recovered completely from her previous transplant shock. Still in 3.5L airpot. Growth is tame but relatively healthy appearance otherwise. Her leaves are going a bit dark green which looks like a phosphorus deficiency to me. Likely a consequence of poor Fertigation practices as I have let her pot dry out more times than I'd care to recount. She also seems to be wilting occasionally which suggests this also, pot size is already inadequate for her rootball.