Do you mean to layer it, then immediately seed it? I'm not saying you can't but I sure wouldn't.

Organic matter is not the same as soil - it is only a component of soil and it should be only a fairly small component. It will continue to decompose and layering on just OM as a one time shot will result in an uneven, lumpy surface that will essentially just be your thin, rocky layer of existing soil with some patchy lawn areas by the end of the season. The OM will have vanished or substantially reduced by that time.

Providing a proper seed bed is perhaps the most important thing you can do to prepare for a new lawn. Or one that fills in thickly, develops a strong root system and will stand up to normal wear and tear and kid's play. I wouldn't suggest to shortcut the process nor skimp on the soil necessary to get the proper results. There's various ways you can accomplish this, but to do so quickly (in the same season), purchasing a good quality soil is the most efficient and cost effective method.

There are various good reasons and appropriate applications for using the lasagna method but it should not be considered a cheap and easy panacea for all soil problems. There are various situations where it is just not appropriate and this is one.

Here is a link that might be useful: preparing the lawn seed bed

Agree, lasagna beds aren't geared toward a lawn. There wouldn't be anyway to keep refurbishing the bed semi-annually as required without tearing up or burying all the grass that had grown. You can make scattered lasagna mounds sure for flowers and such but not for a lawn.

This doesn't mean you can't improve the existing soil by spreading and working in lots of compost and then seeding next year but that isn't the same thing as building a lasagna bed. Sorry.

Dave

Thanks... I was not looking for "quickly" but would like to keep costs down. And I have a ton more compost then I can humanly use. SO I thought it was a worthy question.

Thanks for the insight

not sure if how we do our raised beds might be a good idea for you, raised beds the same as lasagne. organic matter turns into a growing medium we use this method always with good results. pic's etc.,. on our site.

len

Here is a link that might be useful: lens garden page

If you have alot of finished compost I would spread it out and seed on that. Then I would work on improving the soil for the long term.

Carey