Get Some Great Cinder Block Garden Ideas | Properly Rooted (2024)

The cinder block has long been known as critical piece of masonry that’s invaluable in the construction of buildings and other such structures. Yet a funny thing has happened to this cold, impersonal-looking hunk of concrete. It’s been allowed to live a dual life as an essential component to a garden, as its combination of weight, sturdiness, and design makes it versatile enough to be the backbone of some rather innovative concepts. Here’s a look at some of the most progressive ideas out there.

1. The Ultimate Planter

The most recognizable feature of a cinder block are the two gaping holes that dominate their surface area. These holes play an important role in a cinder block’s traditionally intended use, as they lighten the unit’s weight and improve insulation without compromising its sturdiness. Yet as many people have discovered, they also make killer planters.

Because they can withhold whatever nature throws their way, these bulwarks can easily double as immovable homes for foliage and their dirt. You can be confident that a cinder block will not only stand up to weather, but also to the plants’ own growth.

Cinder blocks are also designed to be stacked; once they are, they’re not going anywhere. If you have a touch of creativity and ingenuity in your bones, you can use this to your advantage, staggering them to create intriguing patterns that can instantly turn your backyard into a cool conversation piece.

2. DIY Raised Garden Beds

If you have intentions of growing crops in your backyard, you don’t necessarily have to resort to buying a garden bed, or even constructing one of your own from wood. A properly placed arrangement of cinder blocks will do the trick, and do it well.

Because they’re so easily stackable, you can make the bed as high as you need. You can also fill their holes with dirt, just in case you want a little extra reinforcement. You can even use these holes to plant other vegetation, to give your garden bed an extra touch of character.

Perhaps the most advantageous part about making a raised garden bed from cinder blocks is that it gives you the opportunity to expand its size to accommodate your growing desires. You can’t move a border in a store-bought box, but you can do it here, albeit by breaking a bit of a sweat.

3. Cinder Block Shelves

The holes of a cinder block aren’t just great for plant placement. They also work rather well for wooden beams. This match can be exploited rather well for your garden if you’re looking to add unique, cost-effective elevation to your greenery.

If you thread a few wooden beams through the blocks’ holes, you’ll have an instant shelving unit that daresay may be more stable than the flimsy units you may find in your neighborhood garden store. Again, because cinder blocks are so easily stackable, you can design this shelf to be as high or low as you’d like.

What’s more, you can space this makeshift shelving unit to be as long or short as possible. Its length will be determined by how many plants you’d like to place on its surface. Just don’t overdo things – you don’t want to create a unit that’s excessively busy.

4. Cinder Blocks as Canvases

If you’re worried about cinder blocks turning your garden into a concrete jungle of dismal gray, don’t fret. They can be painted to fit in with whatever color scheme you’ve already built in your garden. In fact, they make excellent canvases that will allow you to show off your creative side.

If you just want to add a pop of color just to keep them from being gray, adding a coat of paint will do the trick nicely. However, feel free to go a little nuts if you’re so inclined. Paint geometric patterns of different hues. Use the gray base as negative space. Even put a few blocks together and turn it into one multi-block work of art.

Of course, the caveat to doing this is that you still want to make sure what you’re doing matches the overall motif of your garden. Not doing so will make the block stand out, and not necessarily in a good way.

5. Make a Cinder Block Bench

The cool thing about mixing cinder blocks and wooden beams is that they can withstand a lot of force and weight. They can even combine to hold up people if they wood is thick and sturdy enough. Because of this, you can forego the trip to your nursery’s garden furniture section and make your own bench.

Like most cinder block projects, the key to this creation is their ability to be stackable and immovable. Just determine how wide you want your bench to be, build each “end” of the bench with appropriately arranged cinder blocks, and thread the sturdy wood beams through.

Once you’ve put the frames in place, you can then take your creation to the next level by festooning it with various garden pillows, blankets, or any other similar accoutrements to give it additional character. If you neutralize the bench’s bones in their natural state, your guests won’t pay much attention to its construction. This is a good thing.

If you’d prefer to keep things natural, there’s one thing to keep in mind: spacing. Because of the way cinder blocks are designed, you will end up with gaps between the beams when you sit. It’s like slats on an old-school wooden chair, only larger.

Yet with that or any other use, you’ll find that a cinder block can be utilized as the versatile backbone of virtually any basic garden motif. Add into the fact that their usage tends to save you a healthy chunk of money, and it’s easy to see why the use of these sturdy hunks of concrete have become such an effective piece of many a person’s gardening puzzle.

Photo by Dennis Yang Licensed Under CC BY 2.0

Get Some Great Cinder Block Garden Ideas | Properly Rooted (2024)

FAQs

What do you put on the bottom of a cinder block planter? ›

Here's How to Make a Raised Bed Garden with Cinder Blocks:

Lay down some weed fabric, cardboard, or newspaper, and add your soil to both the main bed and all of the holes in the blocks. If you like to sit while you garden, leave a couple of the holes in the blocks empty. Then start planting.

What plants grow well in cinder blocks? ›

I planted each of these cloves in its own cinder-block hole. Each one will grow into a full bulb. I also planted two bunches of basil, two bunches of cilantro and one bunch of oregano. Each of these grows in its own cinder-block hole as well.

How many cinder blocks do I need for a 4x8 garden bed? ›

Leaving a 1/4″ gap between every third cinder block, place the blocks hole side up. 20 blocks will give an interior bed area of 4′ x 8′.

Do cinder blocks make good garden beds? ›

Building a raised garden bed out of concrete blocks can be a good idea, but it is important to make sure that it is done correctly. Concrete blocks can be durable and provide a stable base for a garden bed, but they can also be prone to cracking and damage from the elements.

Should you put rocks in the bottom of a planter? ›

Problematic? You bet! Rocks in the bottom of containers do not contribute to better draining soils and healthier plants. Instead plant roots encounter saturated soils that don't drain efficiently.

Why put cardboard in raised beds? ›

It acts as a physical barrier to block out pernicious weeds. Usually, 2 – 3 layers of cardboard will suffice, though you may want layers in more weed-prone areas. The damp environment created by the cardboard is conducive to earthworms and other beneficial soil microorganisms.

Is it safe to grow vegetables in cinder blocks? ›

Stay away from old-fashioned cinder blocks, which may contain heavy metals—not a good thing for food gardens. Second, a concrete block bed can affect your soil's pH, making it more alkaline, so it's not good for growing acid-loving plants like blueberries.

What is the difference between concrete blocks and cinder blocks? ›

Cinder blocks are hollow rectangle-shaped structures usually made of concrete and coal cinders which find use in construction sites. Concrete blocks often, on the other hand, are flattened constructs made of steel, wood or cement.

How long do cinder block garden beds last? ›

Although it costs more to create these concrete raised beds, they are pretty permanent. We plan to use ours for over 20 years, so our pro-rated cost per bed over time (for both soil and blocks) is under $18 per year.

How to build a cinder block garden bed? ›

How to Build a DIY Cinder Block Garden Bed
  1. Calculate the Dimensions. A typical cinder block is 8 x 8 x 16 inches. ...
  2. Mark Off the Area. ...
  3. Prepare the Ground. ...
  4. Arrange the Cinder Blocks. ...
  5. Add Another Layer of Blocks (Optional) ...
  6. Fill Perimeter With Dirt. ...
  7. Fill With Topsoil and Plant.
Feb 27, 2024

How deep should raised garden beds be? ›

They should have at least 8 inches of soil depth to accommodate the root systems of plants, because the majority of plant roots require 6 – 8 inches of soil for healthy root growth. A depth of 8 – 12 inches will suffice for most gardening situations.

What is the cheapest material to build garden beds? ›

Here are a few items you could use, round up or find in your yard to create a raised bed on a small budget.
  • Bricks.
  • Stones.
  • Wood or barn wood (make sure it's chemical free)
  • Fence pickets.
  • Cinder blocks.
  • Galvanized tubs.
May 3, 2023

How do you landscape with cinder blocks? ›

Paint these cinder blocks with bright hues, plant flowers with some height for an enhanced dramatic effect, and place them in different corners for visual interest. Make sure that you are placing at least 3 cinder block planters next to each other so that they look like flower beds.

What is the best thing to put in the bottom of planters? ›

One of the best things to put at the bottom of a planter for drainage is broken pieces of pot. You can use any unwanted plant pots or chipped crockery for this – simply smash them up into small to medium-sized pieces. Adding a layer of broken pieces of pot like this will prevent compost loss out of the drainage holes.

What is the best bottom for a planter box? ›

Empty Plastic Pots

Instead of stacking them in the garden shed, I place one or two upside down in the bottom of a large container. Typically, holes in the bottom of the plastic pots allow moisture to drain through to the main container's drainage holes. Pros: They're usually free.

What do you put in the bottom of a planter for height? ›

Styrofoam peanuts (a.k.a packing peanuts) or styrofoam blocks (a.k.a foam blocks) are recommended for filler material. To keep the filler more secure and contained, place them in an empty potting soil bag.

Can you use cinder blocks as planters? ›

An added bonus of filling your cinder blocks with soil is you create small, individual gardens. Use these to plant herbs or an invasive species that might not coexist well with neighboring plants. 5. Fill your DIY garden with drainage material and soil.

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