Topsoil is generally used outdoors to cover natural ground that has been tilled. You want to use a potting mix, with a different consistency. You might try carefully transplanting into potting soil, while stipping away most of that clumpy mud, at the same time taking care not to damage the roots. It could be as dicey as bypass surgery. Either that, or start over.


Here's what someone from another gardening site says. scroll down to the 4th post for that person's take:

http://forums.gardenadvice.com/forum...&enterthread=y