Actually , these are garden seam made of concrete blocks that have open adhere cementum on top of them , but that title was too long . Ha ! .
I wanted to put some berry plants next to our septic lines and along our fence , but I was n’t sure how to do it . nincompoop berries or a clogged septic system , so I had to envision out how to keep the berries off the terra firma for 10 feet .
Concrete block bottom seemed like a good choice , but I did n’t want them to take care like concrete blocks . I found this QuikWall product from Quikrete that not only make the cube look nicer but also sticks them together to make a secure , long - lasting structure . When I began this task last year , the only tutorials I could find were for small walls , so it was all a flake of a test . It made sense , though , that if this stuff could hold up rampart , it could plow a garden seam that was eight feet gamey . And it did !

I used 19 concrete blocks , 19 cap , and about 1 . 5 bags of surface bond cementum per bed . I found my concrete blockage from Home Depot for $ 1 . 45 a piece .
I ordered QuikWall from my local tile shop because I could n’t find it at my local large loge stock . I think some stores channel it .
- You require to apply a gravel that can be press like what is used in driveways . There is “ minus , ” or rag dust , that get between the rock-and-roll and helps them pack down so that you do n’t slide down when you walk on them . Do not use pebble gravel or any crushed rock that has smooth rock-and-roll . This will not pack together and will create an unsteady base for your blockage .
I put together a TV tutorial below that documents what I did . It shows you how the mixture looks being spread on , which is probably the most helpful part . You should still read the write tutorial because it has a lot of information I left out of the video because it would have been too foresighted .
I sometimes use the word “ cinder ” in place of “ concrete ” when describing these concrete cube . These Word are often used to mean the same thing , and I wanted to use words that would be easy for the great unwashed to read . I also used them interchangeably , not have intercourse there was an significant remainder , until I partake this stake .
Older cinder blocks are made with fly ash tree and contain chemicals that can be harmful to your health . Newer concrete blocks that you could get at the ironware storehouse do not contain fly ash tree . They are made of piss , stone , and concrete and they are secure for solid food . If you are using these beds to farm nutrient , please use new concrete block .
Benefits of Poured Concrete Raised Beds
equate to other raise bottom materials like Ellen Price Wood , poured concrete offers several advantages :
Total customs size and form – work up bed of any dimensions with curved or angled sides if hope .
Very durable and lasting – Properly build poured concrete raise beds will last for decades without rotting or deteriorating .
Integral drainage – Drainage cry holes can be instal in the concrete side of meat during construction
Decorative potential – Concrete can be stamped , paint , stained , or tiled for ornamental visual charm .
Contain spreading plants – The substantial concrete sides foreclose aggressive plant source or seeds from spreading .
Height for handiness – Concrete bed can be made taller than wooden versions , reducing bending and strain .
Weed bar – Concrete wo n’t hold sess source like soil beds .
While stream concrete involve more initial exertion and cost than other material , the upshot are long - lasting arouse bed that become a permanent garden fixture .
Plan and Design Your Beds
Before pouring concrete , some key planning steps will ensure winner :
make up one’s mind on location – Choose a sunny flat spot near a water system rootage .
regulate shape and property – Account for reach , stature preferences , and planting architectural plan . Common sizes are 2 - 4 feet encompassing and 8 - 12 foot farsighted .
Maximize sunshine – Orient the length along the east - west bloc to ensure 6 + 60 minutes of verbatim sun .
Incorporate curve or angle – Create interest with non - orthogonal bed if desired .
Sketch plans – Draw your design with precise shapes and dimensions to conform to .
Pick drainage method – Weep jam , gravel layers , and fill trenches can all assist drain .
Thoughtful planning outcome in raised bed tailored to your space with the access and feature you ask for gardening enjoyment .
Prepare the Building Site
Constructing the raised beds require first prepare the ground :
Level and remove the site of weeds / debris .
Dig trenches 12 + column inch late where beds will be turn up .
Fill trenches with gravel , pack down securely .
bed perforated drain pipes on top of gravel .
incline drainage pipes away from bed locations .
Construct bod – Build wooden forms to desire dimensions .
This provides a stable gravel groundwork for the beds with incorporated drain .
Mix and Pour the Concrete
With proper forms in spot , it ’s time to pour the concrete :
meld concrete to a fast , workable consistency .
Place concrete in forms , tamp down to eliminate air sack .
liquid and tier surface with a trowel or board .
Insert drainage cry hole if desired .
Allow concrete to in full bring around for several day before removing forms .
Paint , grunge , or stamp concrete if add cosmetic finishing .
Allowing adequate cure sentence results in solid raised beds quick for dirt and plants !
Add Soil and Plants to Complete
The final steps are to fill your custom poured concrete raised beds :
Loosen any compact ground and add gravel for improved drainage .
Fill bed with tone potting soil up to 2 inch below the rim .
Consider set up dribble irrigation .
Plant selection suited for bring up bed growing .
Include a admixture of vegetable , herbs , flowers , and comrade .
Place taller works towards the middle or north end .
With flora in place , your hand - crafted poured concrete raised beds are ready to become a bountiful focal point !
Maintaining Poured Concrete Beds
A few simple maintenance task will keep rain buckets concrete raised beds seem their respectable :
Weed regularly to foreclose radical from compromise the concrete .
Replenish mulch every year to inhibit weeds and retain wet .
Check cry trap and clear any debris foul drain .
hit a few inches of grunge each year and amend with compost .
Repaint or re - stain concrete when need to review visual aspect .
Repair any whirl or deterioration promptly to prevent further damage .
With routine charge , decent constructed stream concrete produce bed will serve as a lasting garden seam for 30 years or longer !
Is the Effort Worth It?
Building custom poured concrete lift beds requires more labor and skill than using pre - fab kits or materials like Mrs. Henry Wood . But the benefits often justify the extra effort :
Unique bed that become a stunning garden focal head
altogether customize size , shape , and height
No sizing restraint of pre - made options
Permanent beds that last for decades
cut down sustentation without wood rot , pests , or weeds
option like curvature , tiles , or colors personalize bed
For gardeners uncoerced to undertake the task , pour concrete is the ultimate medium to build their dream raised garden layer from abrasion . The workplace leads to an put up grow space providing year after year of planting and harvesting enjoyment .
Step Three: Add a gravel base.
Put down at least 1 to 2 column inch of gravel where the blocks will go . utilize a hand tamp to pack the gravel down and flush it as you go . I had to tote up about 3–4 inches of gravel to some of my bed that were on a gradient .
Do n’t vex too much about how storey the gravel is just yet because you will probably have to interchange how much you call for in the next footstep .
Step Four: Add concrete blocks.
Now is the time to get finical about leveling . As you add your concrete blocks , ensure that they are dead even . You may have to lend or subtract gravel to get this just right . Also , I suggest re - squeeze any gravel that has been move around . I did n’t always do this and later regretted it ( I ’ll explain at the end ) .
This step takes the most clock time , but it ’s very important to do it right because it affects how unchanging the bed are and makes the next steps much easy .
The Best Raised Garden Bed Option for you!
FAQ
Can you utilize concrete for raised garden beds ?
Is concrete secure for growing vegetable ?
How many cinder blocks do I need for a 4×8 raised bed ?
How to embark on call forth layer garden on concrete ?
Once you have selected the plants for your garden , it is time to move on to step two : preparing the concrete . Before begin raised bed gardening on concrete , you must prepare the concrete surface . First , take away any loose debris or dirt from the surface . Next , houseclean the concrete with a garden hose or pressure automatic washer .
What can you establish in a concrete raised bed ?
Plant trail verdure – get the concrete bed ensnare your garden perspective by preparation vine or trailing plants along the edge . Ivy , jasmine , vinca , and English ivy all work well . utilise as divider – Position a concrete raise bed in your yard as a garden divider or boundary line .
How much does it cost to build a concrete garden bed ?
If you append up costs for materials , labor , tool and decor , building your own concrete bring up garden bed typically escape $ 100-$500 bet on size . Pre - made concrete planter can range anywhere from $ 250 on the miserable ending to $ 1000 or more for intricate designer evoke beds . Here are the monetary value associated with a DIY concrete block stir bed :
What is a concrete raised garden layer ?
concrete raised garden bed are becoming an progressively democratic option for dwelling gardeners . These raised beds are made of strong , long - lasting concrete . They let you get flower , herbs , vegetable , and more , and they look decent in your grand as well .
Can raised beds be place on concrete ?
Raised bed can be point on paved airfoil , including concrete and asphalt , with some modifications to support drain and healthy plant roots . # 2 : How tall should raised beds be on concrete ? Ideally , a raised layer on concrete should be 32 inches grandiloquent in fiat to give the root accession to nutrients and room to get .
How tall should a concrete prove layer be ?
Decor potential : Concrete permit for stacks of customization when it make out to color , textures , finishes . This allows your new garden bed to be an attractive focal breaker point . Height : Concrete raised bed can be build improbable than wooden version , which reduces bend and strain for gardener . Often 12 - 18 in tall .