to bloom in fall.. mums must be pinched back every 4 to 6 weeks ... to delay bloom and make a big clump ...

if your are already blooming.. i do NOT know if you can pinch back now...

ken

Cut them back hard and flush them with water over the next several days. If they die, take it as a lesson learned.

They were tricked into thinking it was late summer based on daylight length. I have heard of this happening before.

I can't really speak to your fertilizer questions, but as far as the mums, yes, it is usual for them to bloom this early if they are not cut back a few times.

Personally, after the last two years, where I was constantly cutting back because the buds were forming so darn fast, I have decided to let the mums bloom when they want. It was just too much to keep after them, and they still bloomed in September, which was earlier than I wanted. So they are on their own - I figure it will intrigue passers-by to see mums in June, lol!

In the meantime, if I want mums in the fall, I'll buy a few pots and stick them in the garden.

As far as your situation, I agree with mistascott and would water them (but not OVER water!) for the next few days to try to dilute the fertilizer. Maybe I'm totally wrong but that sounds like common sense, as long as you don't drown the plants. Not sure I would cut them back though. I don't think cutting back would do anything except sacrifice the blooms you have now. I don't think they will bloom again. But who knows, I could be wrong on that too!

Good luck!
Dee