filling a large raised bed on a budget
singingkkatt
11 years ago
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thegreatcob
11 years agolast modified: 9 years agoRelated Discussions
What should I fill my raised bed garden with
Comments (16)Permeable means it s ability to allow liquids to pass through. Chicken wire is fine if you have moles/voles but landscape fabric is only mildly permeable. Testing consistently shows it slows drainage substantially. It is not ever recommended for the bottom of a bed by experienced gardeners and it would have no effect on the moles and voles anyway. 75:25 compost:loam is high on the compost side and the quality depends on your definition of "loam". Means many different things. But as long as it isn't so-called "top soil" or sand a 50/50 mixture of it would probably work. More commonly you see the recommendation for 40:60. But you will have to add more compost at least once a year and better 2x a year as it continues to shrink as it decomposes. I get the impression you aren't interested in first trying to improve your native soil and incorporate it into the bed, correct? That is the best route to go. But if not then you need to understand that overtime it can affect whatever you fill your bed with unless you made some sort of solid bottom box which is not at all recommended. But you can still make it work with a framed raised bed on top of it with chicken wire or hardware cloth on the bottom IF you keep the bed well and frequently amended with quality compost. Over time the leachate and soil bacteria will improve the soil below the bed as well. Dave...See MoreAnother post about what to fill raised beds with...
Comments (46)So we finished our new raised vegetable beds and thought I would update this thread. We ended up having only enough soil from our old beds to fill two of the new raised beds. We also used all of our store of organic matter, which wasn't a lot and compost dug out of a passive compost pile that had been there for over a year which we used to fill the bottom half of those two beds with the soil from the old vegetable beds for the top half. Then we had three beds still to fill! I seriously considered making up a mix using pine bark fines etc., but reading along, what jumped out at me was the percentage of organic matter that is recommended in your native soil. In our old vegetable beds, I added a lot more organic matter, maybe up to 50% and the soil would shrink back and I'd have to keep adding more every year. So, in the end I decided to at least check to see if I could find some 'organic' native soil to purchase. I called around for recommendations and someone did direct me to someone who might have what I needed. And they did. They also added a small percentage of organic compost and had amended the soil with organic amendments, like alfalfa meal and worm castings etc. It sounded like just what I wanted. So we had them deliver it and filled the remaining beds. I will be interested to see how the produce does this year and compare the old soil we had, with the new soil. The new soil is also clay soil, and it doesn't drain as well as my own soil or the soil from the old vegetable beds with all the organic matter, that water just runs through. This new soil, the water puddles on the top for a little bit, but a layer of mulch slows it down enough. I hope to amend the new soil, either with cover crops or mixed lawn clippings and chopped leaves in the fall. So that's the end of that story. Thank you all for all the help and answering so many questions. :-) The last bed filled with new soil....See Morecompost to fill raised beds?
Comments (18)Hey guys! I never said don't use it. Grab it and use it by all means. But unless it is the only material you have available to you for some reason - which is difficult to believe - then it is still better to add soil, sand, silt, shredded leaves, hay, straw, wood chips and/or other materials to it rather than using pure finished compost. That is what the original question was and I answered it ASSUMING that they wish to create long-standing, ideal growing beds. I'd also point out that there is a great deal of difference between filling a bed with already finished compost and either lasagna gardening or composting-in-place sheet composting. Len - I have studied your beds and according to your website you have alot more stuff in there than just mushroom compost (newspapers, cardboard, kitchen leavings, branches, etc. ;) That is all I am advocating. Isn't a lasagna bed 100% OM, and eventually ALL compost No, most contain some soil as well or should according to the original author. Yes, they are made up of layers of multiple organic materials that have not yet begun to compost alternated with layers of finished compost if available and layers of soil and (1)they have to be refreshed at least semi-annually with new materials to keep them going and productive (2)can have drainage problems - ponding it's called - as the water runs right through them and pools in the ground below (3)require more watering than a soil based garden (4)can have both plant stability and nutrient imbalance problems that can result in either poor growth or super-growth with little or no produce production. Lasagna gardens and sheet composting gardens are compost piles in process, not finished compost. They are great but they are not a bed of finished compost. So, donn's beds are 50/50. Fine. A bit rich but if it works go for it. I will hazard the guess that you will get better production if you cut back a bit on the OM. But it's not growing in straight compost. Tosser has added straw and topsoil to his. Not straight compost either. Ideal. So if greenguy takes the municipal compost and layers it into his beds with additional organic materials he will have a lasagna bed. If he also adds layers of soil, sand, clay, or silt he'll have a garden. ;)...See MoreNeed advice on filling a large raised bed
Comments (13)I'm fairly new to this forum altho have gardened in various ways for many years but your post brings some questions to mind. I'm curious about the size of your "garden" - will that be large enough for the plants you are planning? I find that quite a small garden and would probably use those 2'x10's and make 3 raised beds which are not so tall. Unless your base is pure bedrock you won't need more than 8" of good soil for most plants. If you loosen the base with a fork it will improve over time. Of course there may be another reason you want to elevate the garden to make it easier to work but you really don't need IMO to have 28" of good soil. If you have any reasonable soil you could fill the tall bed with greens and browns mixed with soil and top it with 8"-10" of good soil, whatever is available. Any worms in the soil will have a feast. If you start a compost bin ASAP you will have some good stuff to topdress your garden in a few months. I've rarely come across bagged soils that are all that good at a low price, and I think it might be a pretty expensive way to garden if you buy that much at high prices. Better to buy some organic fertilizers to supplement until you can get that compost done....See MoreGrim42
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