"lasagna gardening"

Bakersfield, CA

Anyone care to comment on so-called "lasagna gardening" and what ingredients to use and/or avoid in this method? I was thinking of using it for cantaloupes.

Driftwood, TX(Zone 8b)

I just completed a large, (70' long x variable depths), new bed using this method - although I prefer to call it sheet composting. There are so many different components you can use, I think it's best to just see what the cheapest available material you have on hand and use that as your major ingredient.

For me, I did the following with lots of watering between each layer:

1) Cardboard
2) Molasses/water spray (to attract earthworms)

then:

3) Shredded leaves, partially composted
4) Peat Moss
5) Blood Meal/Bone Meal
6) Top soil/garden soil/depleted potting soil from old pots


Repeat steps 3-6 until the layers are about 24" high, ending with the shredded leaves

My new bed is compacting very nicely and will be ready for roses in fall, but I've planted a vegetable garden in the layers now - both transplants and seeds - and everything is growing and producing well. I would definitely recommend this process for creating new planting beds to replace turf areas or, on a smaller scale, to create easy to manage vegetable gardens.

St. Louis County, MO(Zone 5a)

My best vegetable bed was built this way. I put down heavy cardboard to kill grass, then layers of a bale of hay left over from Halloween, mowed grass, chopped leaves, newspapers, rabbit manure. During the winter I poke holes in it and put kitchen wastes in it. The 2nd fall I put down more newspapers on top, then the mown grass and chopped leaves. I didn't put any dirt in except for whatever I dumped out of flower pots. It takes a little extra water the first week I plant in it, then it is pretty much carefree. Any weeds that pop up are easy to pull because everything is loose. I don't walk on it. The one time I did my foot went down about 6 inches, that is how loose the "soil" is. Mine is surrounded by 2 layer high cement blocks so I can sit while I work.

Edisto Island, SC(Zone 8b)

mocatmom...do you have a problem with black widow spiders using the concrete block? might just be my area but they seem to love concrete block around damp gardens...virginia

Driftwood, TX(Zone 8b)

Cathy4 used the concrete block - I used a temporary fence with poultry netting affixed to tall stakes which will be removed this fall and a natural rock edging will be installed.

Bakersfield, CA

Thanks, everyone. I can hardly wait to get started. It sounds like great fun! I can finally use all my half-rotted compost.

Driftwood, TX(Zone 8b)

Good luck, Guosui! It's more work to build it than it looks like 'on paper', but it's one heck of a lot easier than tilling, etc. As Cathy4 stated, I think it's the best planting bed you can create.

I don't know what others did, but I pulled back layers and added one little scoop of potting soil for the seeds I planted, then pulled the layers back in place as the seeds sprouted. Did anyone else just plant straight in the layers?

St. Louis County, MO(Zone 5a)

I start my seeds first, then plant, but if I was starting seeds in the bed, it would need a small patch of soil. Your process sounds perfect.

I fill my concrete blocks, too, and use them for flowers and herbs. They do need a bit of potting soil at the top.

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