Beginner Gardening: African Violets Won't Die, Won't Bloom, 1 by DallasDad

DallasDad wrote:
I'm new to indoor gardening, and I severely overwatered a set of eight African Violets when I first got them. I don't see any obvious sign of wilt or root rot, but while the leaves are wonderfully healthy, the plants have stopped growing new leaves, and all the flowers shrivelled up and dropped off.

I'd hoped that once I cut back on the watering, the plants would recover and start blooming again. No such luck so far, and it's been a couple of months.

The plants are on a north windowsill. They get no direct light at all, but plenty of indirect light. I water them weekly, more or less, only when my moisture meter says they're dry down by the roots. I keep them in pebble trays for extra humidity, and am careful to keep the water in the tray from touching the bottom of the pots.

Will these plants recover and start blooming again?

N.B. the plant on the left shows healthy leaves, and stalks with remnants of old buds. It has not changed appearance in over two months. The plant on the right was the one worst-damaged by the overwatering. It lost most of its succulent stems around the bottom, but the remaining stems have become firm, strong, and "springy" when bounced.