How to Build a Raised Garden Bed With Concrete Blocks

Are you looking for a straightforward way to get started with gardening? A raised garden bed might be the perfect solution. Constructing your own raised garden bed is surprisingly simple and only requires access to a few basic materials, such as concrete blocks. Not only will this project boost your green thumb skills, but it can also enhance the beauty of your outdoor space!

How to Build a Raised Garden Bed With Concrete Blocks

In this blog post, we’ll provide step-by-step instructions on how to build a raised garden bed with concrete blocks—we’ll even include some helpful tips along the way. So get ready to get growing!

Tools and Materials You Will Need to Build a Raised Garden Bed With Concrete Blocks

  • Concrete blocks (enough for the size of garden bed you want to build)
  • Level
  • Tape measure
  • Hammer
  • Masonry nails
  • Gravel
  • Soil mix and fertilizer
  • Planting materials such as seeds, flowers, or vegetables
  • Optional: landscaping fabric

Step by Step Guidelines on How to Build a Raised Garden Bed With Concrete Blocks

Step 1: Measure and Mark Your Area

Before you start building, make sure that you measure out the area of your garden bed so you know exactly how many concrete blocks are needed. Use a tape measure to mark out the boundaries of your raised garden bed, making sure all measurements are level and straight. Keep in mind that if you’re using landscaping fabric, you’ll need to leave extra space for the overlap.

Use a Tape Measure to Mark

Step 2: Prepare the Ground

Once your area has been marked out, it’s time to prepare the ground. Clear away any grass or weeds and then spread a layer of gravel over the entire area. This will help ensure that your garden bed is level and provide better drainage for the plants. Preparing the ground properly is an important step that can’t be overlooked!

Step 3: Lay Down the Concrete Blocks

Now it’s time to start building! Start laying down your concrete blocks in a single row, making sure that each block is level. You can use a hammer and masonry nails to secure the blocks together if needed. Once you’ve created your first row of blocks, it’s time to start building up the sides. make sure that each row is level as you go up.

Step 4: Add the soil and Planting Materials

Before adding your soil mix, it’s a good idea to lay down a layer of landscaping fabric. This will help prevent weeds from taking root in your garden bed. Once the fabric has been laid down, add the soil mix and fertilizer before planting your desired materials, such as vegetables, herbs, or flowers.

Step 5: Enjoy Your Raised Garden!

You did it! Your raised garden bed is now ready to be enjoyed. Make sure to water your plants regularly and add fertilizer throughout the growing season for optimal results. With a little bit of care and attention, you’ll soon have a thriving garden that will add beauty and value to your outdoor space.

Congratulations on building your very own raised garden bed! With just a few basic materials and a bit of elbow grease, you can now enjoy the fruits (and vegetables!) of your labor. Happy gardening!

Additional Tips and Tricks to Build a Raised Garden Bed With Concrete Blocks

Consider Adding a Trellis
  1. Make sure that you use a level when constructing your garden bed. This will help ensure that all of the blocks are even and the bed is sturdy.
  2. When choosing concrete blocks for your raised garden bed, look for ones with holes already in them to allow for better drainage and ventilation.
  3. If you’re filling the spaces between the concrete blocks with soil, you may want to consider using a landscape fabric or filter fabric so that weeds do not get into your garden bed.
  4. Consider adding a layer of gravel at the bottom of your raised bed before filling it with soil. This will help ensure that water can drain properly and aid in the aeration of the soil.
  5. Don’t forget to allow for access to the garden bed by leaving a gap at one end so you can easily reach in and tend your plants.
  6. If you want to give your raised garden bed a more polished look, consider adding some decorative edging around the outside of the bed. This will help contain the soil and make it look neat and tidy.
  7. Place a layer of mulch around the outside of the bed to help retain moisture in the soil, keep weeds down, and give your garden bed a finished look.
  8. If you are growing vegetables or fruits in your raised garden bed, consider adding a trellis to encourage plants to climb upwards and provide additional support.
  9. Try to keep your raised bed away from trees, as they can steal vital moisture and nutrients from the soil in your garden bed.
  10. Finally, don’t forget to fertilize your plants regularly to ensure that they have the necessary nutrients to grow healthy and strong!

By following these tips and tricks, you’ll be well on your way to creating a beautiful raised garden bed with concrete blocks.

Things You Should Consider to Build a Raised Garden Bed With Concrete Blocks

  1. Make sure to choose a good location for the garden – it should have access to plenty of sunlight and be well-drained. Also, make sure that any nearby trees or shrubs won’t block too much of the sun from reaching your plants.
  2. Choose the right size and shape for your raised bed – depending on what you’re growing and the size of your yard. You can make it any shape you want, but make sure that it is wide enough to provide plenty of room for your plants to spread out and grow optimally.
  3. Lay down a weed barrier – like landscape fabric or cardboard – before you begin building the raised bed with concrete blocks and fill it with soil. This will help prevent weeds from growing in the bed and competing with your plants for nutrients and water.
  4. Make sure to use concrete blocks that are designed specifically for outdoor landscaping projects like this one, as these types of blocks are made to resist weathering and fading from the sun’s rays over time.
  5. Make sure to line the sides of your raised bed with a layer of gravel or sand before adding the concrete blocks. This will help ensure that water doesn’t get trapped in between the blocks and soil, preventing it from draining away properly.
  6. Use mortar to connect the blocks together – this will make them more secure and prevent them from shifting over time due to weathering or settling.
  7. Fill the bed with a good quality soil mix suitable for growing vegetables – choosing a mix that is rich in organic matter and has plenty of nutrients will give your plants the best chance of success.
  8. Finally, water the soil regularly to keep it moist but not soggy – as this will help ensure that all of your plants get the hydration they need to stay healthy and thrive.
Use Mortar to Connect the Blocks Together

Once you have considered all of these things, your raised garden bed should be ready for planting! With the right planning and setup, you can create a beautiful and productive vegetable garden that will last for years. Enjoy!

Frequently Asked Questions

What Size Should My Raised Garden Bed Be? 

Your raised garden bed should match the size of the space available, and you can build it as small or as large as you’d like. If building a larger bed, make sure to leave enough room for two people to work in it comfortably.

How Tall Should My Concrete Blocks Be?

You can use blocks that are a few inches tall or up to 12 inches. However, be sure to consider the weight of your soil and plants when calculating the height of your blocks.

Do I Need Any Special Tools To Build A Raised Garden Bed?

No special tools are required for building a raised garden bed with concrete blocks. However, you may find it helpful to use a wheelbarrow or tarp for moving the soil and blocks. You will also need a shovel and level to ensure the blocks are even.

How Much Soil Do I Need?

The amount of soil you need depends on the size of your raised garden bed. Generally, it’s best to use a mix of potting soil and compost for optimal plant growth. You may also consider adding an additional layer of topsoil or organic matter to enhance drainage and aeration.  

Use a Mix of Potting Soil

Is There Anything Else I Should Know Before Building My Raised Garden Bed?

Yes, be sure to make your raised garden bed in a location that receives plenty of sunlight and has good drainage. Additionally, if you plan on growing plants with deeper roots, such as tomatoes or peppers, use blocks with a higher height. Lastly, be sure to water regularly and add fertilizer for optimal plant growth.

Conclusion

So there we have it- a comprehensive guide on how to build a raised garden bed with concrete blocks. Building a raised garden bed using concrete blocks allows for excellent drainage and enables you to create beds of any desired size and shape, without the weight limitations seen in other materials.

You can also potentially use reclaimed or repurposed materials to save money and create an even more interesting design.

This is one instance where good planning, in the beginning, pays off in the end! If you take your time and get creative, you’ll be able to build a stunning raised garden bed that will last years. And if you still need help deciding if this type of project is right for your situation, check out our helpful consultations with experts who are more than happy to give their advice and expertise!

Photo of author

Carmen Fox

Hi, I’m Carmen and I’m the one working behind this site. I grew up on a farm in the Eastern side of San Diego and had an average childhood with my two older brothers. I kept working in different types of skilled trade jobs, from construction work to roofing, electrician to plumber. I’ve also created foundations and fixed ceilings- anything related to construction. After I got married, I kept working in different types of skilled trade jobs, from construction work to roofing, electrician to plumber. I’ve also created foundations and fixed ceilings- anything related to construction. In the years since I started, me and my team have helped thousands of people to build creative, economical, and family-friendly homes at a minimal cost.

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