In July, I dug up my "Bishop Llandalfs" because of a construction project. I potted them and they've done pretty well, lots of blooms but its been a bad year for mildew (cool). Now the project is complete and I could replant. Last year, these plants flowered through October. I wonder if I should just leave them in the pots until they'd normally be divided in March or would they benefit from being back in the ground?