How To Prepare The Soil Before Completely Redoing A Garden Bed?

To prepare a garden bed for planting, make multiple passes based on the thickness of the sod and the power of your tiller. Amend the soil with compost, aged manure, or other organic matter to improve fertility and drainage. Level the soil using a rake or shovel and remove any large sod clumps. Reconsider tilling for small gardens or raised garden beds as it disrupts soil structure, creates more erosion, and kills earthworms. For small gardens, spread compost on top and work it into the soil again with either a shovel or a tiller. If you prefer not to use manure, lightly apply an organic fertilizer like greensand, rock phosphate, kelp meal, bonemeal, or bloodmeal.

For existing garden beds that are empty, add 2-3 inches of compost and work the soil when it is moist but not wet. Turn the soil over to a depth of at least 12 inches and top dress with organic fertilizers. Hand pull small weeds and remove any remaining root fragments that can resprout. Solarize beds by moistening the soil and covering.

Plan your new garden bed a few months ahead of time to ensure healthy soil takes time. There are seven steps to prepare a bed: 1) smother it with cardboard or newsprint; 2) remove the vegetation; 3) loosen the soil; 4) amend the soil; 5) set up your watering system; 6) mulch and keep beds weed-free.

To prepare raised bed garden soil mixture, break up the ground surface underneath to give roots all the growing room they want. Soils can be amended with sand to make them looser and drier or with clay to make them moister and firmer. To lightly prep a flower bed, clear out any weeds and turn organic matter in with the soil. Mulch with straw every year and till it into the soil at the start of the next growing season to add organic matter.


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Can I reuse my garden bed soil?

Reusing soil is generally not recommended due to the presence of soilborne pathogens, especially if plants have died from bacterial, fungal, or viral diseases. However, if the plants were healthy, it is generally acceptable to reuse the potting soil. To ensure soil cleanliness, sterilize it through solarization in the sun or heating it in an oven or microwave. Remove dead plants and dump the used soil into a bin to remove large roots and insects. If sterilized with the sun, place the soil in strong, black plastic bags or containers and leave them in the sun for four to six weeks.

How to prep soil for raised garden bed?
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How to prep soil for raised garden bed?

In Scenario 3, if your raised bed is in an existing garden, take a soil sample, add 2-4 inches of compost, and mix it with the top 4 inches of soil. You can also add topsoil from pathways to increase soil depth. Be prepared to manage weeds immediately as soil disturbance will bring weed seeds to the surface.

Scenario 4 – If your raised bed is on a non-permeable surface, fill it with compost and a soilless growing mix in a 1:1 ratio. Topsoil can be added for beds that are at least 16 inches deep. Add pathway soil to the raised bed and use existing soil from between the beds to increase the depth of soil. This will help prevent plants from drying out quickly and exposing them to extra stress from absorbed and reflected sunlight.

How to rejuvenate old raised bed soil?

Gardeners with raised beds often find themselves struggling with reduced soil levels after a hard winter. An annual top dressing with compost or rich topsoil is the easiest way to refresh the soil, as it helps maintain productivity. Chris Enroth, a University of Illinois Extension horticulture educator, recalls growing in his first raised bed, which he found had exceptionally well-groomed plants. However, after a successful growing season and a standard Midwest winter, Enroth realized the need for routine maintenance and care, particularly regarding soil.

Do raised beds need compost or top soil?

A potting mixture of organic matter, sand, and topsoil is suitable for most raised beds, with sand being doubled for alpines, bulbs, and herbs that prefer good drainage. Other materials like timber, stone, brick, and engineering bricks can also be used for raised beds. Timber is the most popular material, but skilled labor and footings are required for construction and footings. Stone is suitable for wall construction and is generally expensive. Brick is strong, durable, and can be used for curved beds, but engineering bricks are the most suitable due to their weather resistance. Domestic bricks are cheaper but less durable.

How to rejuvenate old garden soil?
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How to rejuvenate old garden soil?

To prepare your garden soil for planting, loosen the top 6-12 inches of soil, remove debris, add compost, worm castings, and bonemeal. Mix these ingredients thoroughly, water the soil, and wait for planting. Compost is nutrient-rich and enhances soil structure and fertility. Worm castings boost plant growth and improve soil aeration. Bonemeal provides extra phosphorus for robust root development and flowering.

This trifecta of organic amendments not only provides essential nutrients but also fosters a healthy microbial environment in the soil. Mix these ingredients into the top layer of your garden soil and distribute evenly. Your plants will thank you for vigorous growth and bountiful harvests throughout the seasons.

Can you put new soil on top of old soil?

Gardeners can save money by replacing old potting soil with new one, as it refreshes the upper area and aids root growth. However, it is important to avoid reusing potting soil if you experienced problems with diseases, weeds, or insects last year. Viruses, fungi, and bacteria will remain in the soil long after the plant’s life, and while it is possible to destroy pathogens, the time, effort, and money invested in gardening outweigh the cost savings. Mixing new potting soil into old soil as needed is recommended.

Can I use the same soil from last year for tomatoes?
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Can I use the same soil from last year for tomatoes?

Reusing last season’s soil can be a cost-effective way to grow plants, but it requires extra time to improve its texture and replenish nutrients. If your plant died due to old age or exhaustion, it’s best to take the soil directly to a compost pile. The composting process can kill off most bacteria, fungal spores, or insect pests that caused the plant to keel over. Colorado State University offers methods to sterilize used soil, but this may introduce a new definition of “making mud pies”.

Aerate the soil to make it light and fluffy, as a good soil is dense enough to support the plant, hold nutrients, and allow air and water to move through it while retaining moisture for the roots. Break up any hard clumps, look for insect pests or their eggs, and remove anything that might impede root development, including plant remains.

Refill the nutrients used or leached out with soil amendments like bone meal, feather meal, poultry manure, or compost. Peat moss is the most commonly used organic material, but the organic material in soil will decompose, causing some volume loss.

Is there a difference between garden soil and raised bed soil?
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Is there a difference between garden soil and raised bed soil?

Raised bed soil is nutrient-rich and rich in organic material, making it ideal for vegetable and flower gardens. However, it is essential to add organic fertilizer throughout the growing season to ensure a productive harvest. Natural fertilizers like compost, algae, and worms can improve soil quality without pollution concerns. The ideal pH balance between 5. 8 – 7. 5 is ideal for plants, regulating pH levels and maintaining higher nutrient levels. Some gardeners choose to add compost or soil amendments to fortify the soil.

Soil amendments can be used if soil is experiencing drainage problems. Common amendments include perlite, vermiculite, sand, and bark. Perlite increases soil aeration and promotes drainage, while vermiculite increases soil aeration and facilitates water retention. Sand reduces water retention, making it suitable for growing cacti or succulents. Bark is a primary component of orchid mix, maintaining the right moisture for orchids. Organic mulches also help with water drainage. Experimenting with different soil types can help determine which vegetables thrive in different soil types.

Should I replace the soil in my raised garden bed?
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Should I replace the soil in my raised garden bed?

Over time, the soil level of raised beds can decrease due to compaction, decomposition, and harvesting. To address this, add blended topsoil and compost if the bed has significantly decreased. Leafy greens and herbs require at least 6 inches of growing depth, while tomatoes, peppers, and other deep-root crops require 12-18 inches of nutrient-rich soil. Garden plants appreciate deeper soils, which encourage stronger, sturdier roots. Topping off raised beds with a 1″ to 2″ layer of compost in early spring is the easiest way to provide a long, gradual supply of nutrients to plants all summer long.

If homegrown compost is unavailable, mix in a nutrient-dense, compost-based amendment like Compost Plus. Apply soil amendments if specialty crops need additional nutrients or adjusted chemistry. Building soil health now will lead to stronger plants, less weeding, and more fruitful harvests later.

How do you make old soil good again?
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How do you make old soil good again?

The incorporation of organic compost and slow-release fertilizers can enhance the quality of aged potting soil. The gradual release of nutrients provides sustained nourishment for plants, preventing a sudden surge in growth. The loosening of old soil also facilitates its revitalization by providing oxygen to the roots, thereby promoting healthier and stronger growth. It is recommended that slow-release nitrogen, phosphorus, and potassium fertilizers be used.


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How To Prepare The Soil Before Completely Redoing A Garden Bed
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24 comments

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  • Hi. Im in NC and I used both the same way you explain. I sign in online for free wood-chips in a local company and got a huge truck full; a neighbor had a tree service company cutting and chipping trees in his property and I just ask the supervisor and they dump the chips in my property; the electrical company was also chipping and I ask and they dump it also; and finally I have a guy that those a lot of work in my neighborhood cutting grass and cleaning the dry leaves during the fall, his machine mulch the leaves very well which prevent from flying with the wing and he dump them in my property; all works perfect. I just have a home small tractor with a trailer and I do all the hand-labor to move everything into my planting beds. I have amazing soil, and enjoy doing it.

  • Happenings today remind me of what my parents said about planting Victory Gardens in WWII. We talk about purchase limit signs in stores. My parents had ration cards. They couldn’t go to 4 stores and get 8 if their ration card was for 2. Wish I were young enough to plant gardens and preserve foods, as I once did here. Yet, doing what I can to preserve what’s still available in other ways. Hope more younger folks will take your advice now. Planning & planting time in the northern hemisphere is NOW! We have heavy red clay in this area – NC). What you’ve recommended is exactly what works to help amend the soil. It needs organic matter tilled into the soil. If hardpan layer is broken up, and not re-compacted, even better. Thank you for sharing and for teaching others. God Bless.

  • I live in North central Tx and have the red soil as well. My garden soil is now almost black and very rich. You are 100% right on the wood chips and the hay. I do the same but a bit differently as I use both every year. Each year I let the old hay the cows drop around the hay ring just set until the next year. Hay ring is next to garden. When It’s time to work the garden soil in January or early February, I scoop up old hay and pile up. It is always well on its way to breaking down and is already mixed with cow manure from where they stood and ate. I then spread on garden followed by wood chips and till in. There is a great amount of organic material in the old hay and the wood chips help hold moisture in garden soil and break down adding even more organic material. Wood chips also keep the PH levels in soil from manure in hay from getting to high. I would add for those looking for wood chips to check with their local electric company or co-op as most of them have companies trimming the trees around power lines in your area and are looking for a place close to where they are working to unload each days wood chips. Really enjoyed your article.

  • Nice soil. I placed leaves in my empty compost bin last year. The bin is huge. Each trip I would walk on them and compact them. I didn’t shred them. The pile was chest high when the bin was full. I thought it would take a few years for them to break down. Turned my chickens loose and they loved it. Just cleaned it out the other day and has the best looking black compost ever.

  • Hello Alan, I live up here in south west Missouri on a rock pile lol. I’ve used wood chips in the past and the Bermuda grass just over takes it a matter of a few months. Now I just container garden so much easier and less maintenance. Great articles watch them all, happy gardening this year and great success.

  • Our city has huge leaf compost piles from the leaves they pick up off the side of the roads where people rake them in piles. They compost and the city gives them to citizens for free, in my younger days gardening I’d go get a pickup load bring home dump on my gardening area…. Check with your city street dept see if they have free composted leaves …..

  • This is basically what I’ve started to do in North Central TX. Pretty much the Back to Eden method. When I had a tractor, but hey get a lot of good exercise with the wheelbarrow. Should have listened a little longer for you to talk about Back to Eden. Yes everyone needs to be planting a garden! The Lord put this on my heart in January of 2020 and I haven’t looked back since! So glad I found your website!

  • My PH is high from all my yard-waste so I’ll be purchasing pine-hardwood-mulch this year as it’s the only bulk item, besides sulfur, I can purchase locally for the need. This year I dug up the entire garden all the way down to the top of the water-table (10-14 inches) & through to the drainage swells to ensure my Ksat rating is as high as possible for the most well-drained soil available in my area.

  • I’m south of Houston and we have horrible black gumbo clay. I’ve been doing the same thing for several years. I even added a bagger to my zTrak mower so I could layer on grass clippings. And my neighbor lets me mow her pasture from time to time to collect material. It works great. That said, I’ve also started using granular humic/fulvic acid which does an amazing job of aggregating the clay and making it much easier to grow in. I also bought a bed shaper implement from Buckeye Tractor this year. Total game changer for hilling the garden beds. I guess I really need to start posting some new articles . . .

  • Beautiful plot, We are doing that with 30 ft x 40 foot area was gifted 11 bags of 30 gallon bags of leaves, plus up the road they cut down Beautiful trees to put in a store & waiting to see someone their to get some, We had 2 have several trees cut down & stump grounded out, used all that Wood chips last year to cover my plants here in Montgomery County, Texas- Beautiful savings also, kept my dirt moist in this Texas Heat also ….. Now, want some for the plot . Thank you, Allen That looked Great – you can forsure plant u some Corn there, Mine doesn’t look at all like that but I’m putting a good 10 rows of corn & other stuff ….our Dirt/ Soil isn’t clay tho It’s thick but black ??? God bless you Josette Tharp Montgomery County, Texas 🙏🏻

  • Your soil looks amazing. I had three small beds that I didn’t plant in for the fall/winter; however, I used, mustard, turnips and collards seeds that I broadcasted over the beds as a cover crop. I am hoping that my soil will be as amazing as yours. New subscriber here. Looking forward to seeing more of your articles.

  • 12 years ago I layered cardboard and coffee grounds 6 layers thick then put 9 inches of woodchip on top . The worms under neath multiplied. To plant I simply pushed the woodchip aside take a plug of soil out the same size of the pot grown plant that is subsequently placed in the hole. No weeding needed,little watering, and the plants and trees grow exceptionally well. Some plants don’t like it like cabbages.

  • Alan, in reference to the wood chips, I had a tree trimming company drop me off 12 loads a few years ago. It has since composted down to some really good material. Still have a few sticks in it, but most of it has broken down really nice. My question is, I have 16 raised beds that I garden in, can this material be added to the beds now? Should I work it in the present soil or just put it on top? Again, many thanks for the great articles you produce. Sure, helps out and answers a lot of questions.

  • I got a huge load (2.5 miles worth) of oak and cedar mulch from contractors installing a new power line near my house. It’s chunky and ugly but once sifted a bit it’s pure gold. As a plus the biggest chunks of oak are perfect for BBQ. Edit: I just talked to the guys working and they were more than happy to cut out a 30 min one way drive to pay the dump to get rid of it.

  • Live in Ohio where it’s got a lot of clay . Used wood chips leaves sand rock dust gypsum mushroom compost and dozen other things. I double dig turning over the garden end of harvest and end of winter before planting. I feel double digging instead of tiling with a rototiller Is less destructive to the biological life.

  • This is call “compost in place”, among other names. One key thing is to be sure of the wood species in your chips as there are many that will inhibit plant growth. It’s also a good idea to out down a sun blocking (water permeable) tarp between growing. Tarps and mulching (composting in place) are both valuable for different reasons. Obviously compost adds nutrients and microbes, tarps will help encourage microbes and beneficial insects habitation but it doesn’t add any nutrients. I find tarps best for short term weed & soil moisture control whereas mulching is best for over winter or longer when resting ground.

  • Just curious if you have taken a soil test of your existing soil versus your improved soil? In my mind I just can’t wrap my head around how nutrient levels of the soil aren’t depleted by the process of decomposition in the mulch beds The other thing that concerns me is you typically get diseased tree parts via a tree service so you are moving those pathogens into your soil Great content and any information would be great!

  • If you still want to plant, but do want to do the same thing over time. You can dig the soil out, then fill the hole with plant matter. Then put the soil back on top. Next year when you turn the soil over all the plants will have decomposed. It also helps keep water in the ground and feed worms. Once plants start growing you can spread mulch on the places plants are not growing. After the first year you can really see and feel the difference in the soil.

  • Y’all should research “food forest”, “Johnson sue bio-reactor”, “fungal composting/mushroom composting” and “drunken compost”. The combination of these methods speed up the process and if you use perforated pvc pipe for air flow with drip irrigation on top it will greatly speed up the process while not requiring turning the piles over. However, if you can flip the beds and mix them up regularly it will hot compost. But this isn’t needed with the bioreactor method.

  • I do this on Florida sugar sand. The issue here is that a foot of woodchips disappears entirely into the sand in three years. Just completely gone. I’ve started charring the chips where I can. I just set a fire on the spread out chips and put a sprinkler on it after an hour. Charcoal lasts longer. I learned that gardening directly in wood chips would only work for me if I had fifty pounds of slug poison to go along with it.

  • My garden area was haed as a rock. First I used a sovel, hoe, and rake, and I scraped off all of the surface grass. Next I watered the area for a few days and then turned the soil with a round point shovel. I then raked out all of the grass roots. I then shoveled all of that first layer into 2 large dirt piles and proceeded to turn the soil at the next layer. I continued until I had turned the soil to a depth of 20 inches. I then began layering in all of the hay and goat manure I had been collecting for about four years. Long story a little shorter…it is a few years later and my soil is good for growing anything. I do not use chemicals and when I turn the soil I put all of the grubs in a pile and watch the birds feast on them.

  • The deeper you till the chips in The deeper the topsoil will be created . You want have to wait years for nature to slowly do it. Have seen other articles. They say to add compost to keep the soil leaning toward a bacteria dominated soil . Wood chips work great around an orchard. Fungi for trees Bacteria for veggies. But having some fungi will not hurt.

  • I do container gardening up north in zone 5A and make my own homemade potting mix. I start by using clay dug from my backyard I let it dry in the sun on my driveway then I crush it into a fine powder then sweep it up. I used to use the topsoil as part of my base ingredients instead of clay, but found that the clay has way more minerals than the native topsoil in my backyard. Basically I mix the clay, compost, worm castings, coconut coir, plus inoculants and amendments together by hand. I made six batches total for this years new grow containers. Per wheelbarrow (1 batch): 10 gallons coconut coir 10 gallons of crushed powdered clay 10 gallons of locally-sourced earth worm castings 10 gallons of my homemade super compost This is the bulk of my soil base mix. Then I add these inoculants and amendments to the base mix listed above.Bat GuanoBone meal blood meal rock dust alfalfa meal kelp meal seaweed meal chicken manure green sand “mineral deposits from the ocean floor” feather meal mycorrhiza “a type of fungus” microorganism mix “multiple different types of microorganism bacteria” course garden perlite red wiggler worms about one dozen per flower pot depending on the pot size If you had X-ray vision my soil would look like a tangled web of millions of white spider webs in the soil mixture. This is the holy grail of the home gardener, it’s known as “soil hyphae” a type of mycorrhiza fungus network that has a beneficial symbiotic relationship with the vegetable plants. If you’re able to achieve this hyphae network magical things happen like absolute ridiculous yields from one plant 👍.

  • nice humus layer. better than that eden mumbo jumbo, as this is more broken down, and less likely to take nitrogen the plants will need. I’d very much stray from taking anyones grass clippings…. you got no idea what they spray, spred, peed, or poo’d on that lawn, leaves a lot safer, and just some common sense or minor effort can keep 95% of the leaves from blowing away. like run a mower deck over them set on high, takes them down to a size the wind has hard time catching.