A thorough flushing of the soil is all you can do.

Joe

I'd give it one good long flush to get out as much ferts as you can. I wouldn't water multiple times a day though. No sense adding the stress of over watering to an already stressed situation.

Can you repot it?

I did the same thing! I've been trying to flush them but watering a few times a day. The pots drain good so I'm hoping they come back. Besides feeling bad about over fertilizing, if they die its $70 down the drain! Dang it!

Probably more effective to pull out and replant into clean, non-fertilized potting mix, I would think.

I agree with Joe & Mblan - flush once, very thoroughly, Then tip the pot to drain the excess water and call it a day. There is no sense in drowning them to save them from ODing on salts. OR, if they are very recently potted up, repot into fresh soil, as suggested by Sugi.

Al