You can just run over the excess clumps with the mower next time, though personally I'd go through with a rake and break them up or go over them with the mower now.

This may not apply to you, but in the wet spring, I have good success with using a mulching blade and side discharging. Sure the blades to not get minced very fine, but at least they get deposited finely on the cut lawn and will pretty much disappear within a day or two.

What kind of mower do you have?? If you've got a very thick lawn and an engine with

Generally clumps left from lush spring growth that is/was wet will have to be broken up, I use a blower, as mulching mowers usually have less lift than when bagging.

Any time you have clumps, just continue to mow over the clumps until they disburse. Mow in all directions if it helps.

dchall wrote "Any time you have clumps, just continue to mow over the clumps until they disburse. Mow in all directions if it helps."

That may work in the south, but with wet springtime cool season turf I assure you after that mower dumps it's load re-mowing alone will usually not resolve the issue. The grass is plastered together and stuck into the turf. It is true that mowing over the clumps will help, and of course this depends how much clumping we are talking about. In wet conditions if time avails mowing higher first, than mowing at recomended cutting heights for selected grass cultivar helps also.

I've noticed that my mower mulches a lot more effectively when the deck is high.

Also, I've noticed that with a rear-discharge mower, if you pull it backward, it'll do a better job of mulching, too. It's kind of a pain, and people look at you funny, but it works. My new neighbor does it, too, so I know I'm not alone.

The higher you mow the less dense the turf becomes, i.e. shoot count per square foot decreases, thus mulching works better, as the grass has more room to dissapate. I personally prefer cutting shorteror at least in the recommended cutting heights for said turf variety. Proper culturial practices, especially fertilizer timing and rates are very important if mulching on a regular basis is desired.

Thanks for all the replies. To answer some questions, I use a Husqvarna mower that has a side discharge that can be closed and a mulch plug inserted, or I can attach the rear bagger (see the link below). I believe it is a 6.5 hp and does a good job with the amount, I think my wet timing was the culprit here. I think I'll get the blade sharpened and run it on a nice dry day this week.

Here is a link that might be useful: Here's My Husqvarna Mower

I know it's a pain on a push mower, but try mowing 2 times in different directions at different heights.

I don't know how tall you cut the grass at, but if you like 3", raise the mower to 3.5" on the first pass so you will not have as many clippings to clump up. Then on the second pass lower it to 3". This will also help mulch up any of the clippings that may have bunched up on the first cutting.

Just an idea. I have to do this in the early parts of the growing season for the same reason. The downside is that it takes twice as long to mow.