Plants in Cinder Blocks - Cinder Blocks Garden - The Garden Style (2024)

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With cinder blocks you can do many things, one of them is to make cinder block garden beds for plants. Using cinder blocks, you can easily make beds for plants in the garden. In this article, I will explain everything you need to know about gardening plants in cinder blocks.

Concrete blocks and cinder blocks are very similar but have a slight difference when they are constructed. The concrete blocks are made of pure concrete. Cinder blocks usually have a cinder aggregate which makes them less expensive than traditional concrete blocks, but they are just as strong. If you are interested in this topic you may learn more about cinder blocks in this article from Cobra Stone.

Pots are one of the most used containers to have plants in a house, the current market offers endless alternatives. Containers o pots come in different models, colors, materials, and sizes, and that is why they can be adapted to different situations.

However, if you are looking for creative ideas that allow you to integrate plants and flowers into the decoration of your home, here is how to plant in cinder blocks.

Table of Contents

What Plants Grow Well in Cinder Blocks

Many plants grow in cinder blocks, the plants that grow best on cinder blocks are those that develop small roots. It is important to select plant species that develop small roots so that they can grow well in the cinder blocks.

Some herbs such as cilantro grow very well in cinder blocks. It is also possible to plant arugula, carrots, lettuce, spinach, chard, and other vegetables in cinder blocks. As mentioned above, it is important to select plant species that develop small roots. These are the plants that grow well in cinder blocks:

  • Arugula
  • Beans
  • Beet
  • Carrot
  • Cilantro
  • Dill
  • Garlic
  • Kohlrabi
  • Leek
  • Lettuce
  • Marigold
  • Marjoram
  • Mustard
  • Okra
  • Onion
  • Parsley
  • Pea
  • Pepper
  • Radish
  • Spinach
  • Strawberry
  • Sunflower (Small species)
  • Watercress
  • Fuchsias
  • Petunias
  • Geraniums
  • Verbena
  • Pansy

Flowers can also be planted in the cinder blocks. For example, petunias, geraniums, and pansies that have small roots grow very well in cinder blocks.

Plants in Cinder Blocks - Cinder Blocks Garden - The Garden Style (1)

What Plants Don’t Grow Well in Cinder Blocks

Some plants do not grow well in cinder blocks because they need a lot of space to develop properly. Plants that do not grow well in cinder blocks have very large roots and therefore need space to develop.

For example, broccoli and tomatoes do not grow well in cinder blocks because they need space to grow and develop. However, Cherry tomatoes grow in cinder blocks, although will not bear as much fruit as they would in a larger pot or if planted directly in the garden.

Standard cinder block sizes are 8x8x16 inches or 8x8x8 inches. Depending on the type of cinder block, you will know which plant is suitable for planting in cinder blocks. Here is a list of plants that do not grow well in cinder blocks, so you should avoid these plants in cinder blocks:

  • Broccoli
  • Tomato
  • Cabbage
  • Cauliflower
  • Corn
  • Eggplant
  • Lemongrass
  • Melon
  • Watermelon
  • Mint
  • Potato
  • Pumpkin
  • Sweet potato

Other plants grow well in cinder blocks, it all depends on the amount of light they receive and watering. Plants that grow well in cinder blocks are the following:

  • Basil
  • Brussels sprouts
  • Celery
  • Chives
  • Cucumber
  • Fennel
  • Oregano
  • Pepper
  • Rosemary
  • Rue
  • Chard
  • Thyme
  • Zinnia
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Are Concrete Blocks Safe for Vegetable Gardens?

Are Concrete Blocks Safe for Vegetable Gardens? Concrete blocks are safe for vegetable gardens. The concrete blocks are made of water + concrete + sand or stone chips. As you can see, the ingredients of concrete blocks are non-chemical and non-toxic.

Grow your vegetables in the concrete blocks without any risk because the concrete blocks are not made with any chemicals.

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How to Plant in Cinder Blocks

How to Plant in Cinder Blocks? Now I will explain how to plant in cinder blocks correctly. As I mentioned earlier the standard cinder block size is 8x8x16 inches or 8x8x8 inches, based on the type of cinder block you choose you will need to choose which plants to plant in the cinder blocks. In an article from West Virginia University, they explain more about the square foot gardening method, which is ideal for planting plants in cinder blocks.

The cinder blocks should be located in a sector of the garden that receives 6 to 8 hours of sun for the plants to develop correctly. I recommend painting the cinder blocks with white acrylic paint to reflect the sun’s heat. If you live in an area where the summer is very strong, you should make sure to wet the cinder blocks because they can get very hot and that will not be good for the plants.

Select the plants to be planted in the cinder blocks, and consider the hours of sunlight that the cinder blocks will receive to choose the right plants. You should combine some herbs and other vegetable plants, the herbs will help keep away insects that can attack vegetables.

Use a well-drained substrate with a good amount of organic matter for planting plants in cinder blocks. This will ensure that your plants will grow properly. During the summer, if your cinder blocks get too much sunlight, you may need to water them more often because the soil will dry out faster.

By following all these tips, you will be able to plant in cinder blocks without any problem and have a lot of plants in your cinder blocks.

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Final Conclusions

Building a garden with cinder blocks has several advantages, for example, cinder blocks are cheaper than the wooden boards used to build garden beds. I like to use cinder blocks because I can also paint them easily, and they last for many years without repainting.

Choosing the right plants that can be planted in cinder blocks will allow you to have a wide variety of plants in your cinder blocks. Normally in the cinder blocks that I use to make my garden bed, I usually plant herbs in the holes of the cinder blocks. With herbs, I make sure to repel insects that I don’t want on my flowers and vegetables naturally.

I hope this article on plants in cinder blocks will be useful and helpful. I recommend our article about ideas for vertical wall gardens.


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Plants in Cinder Blocks - Cinder Blocks Garden - The Garden Style (2024)

FAQs

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.

Can you plant a garden in cinder blocks? ›

No worries! Skip the wood and put together a concrete block garden—you can go all the way from planning to planting in just a couple of hours.

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.

How long do cinder block garden beds last? ›

Also, the wood will eventually rot while cinder block will last essentially forever. I know I could just lay the blocks on the surface and let them be, but I want them to be at least a little aesthetically pleasing.

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.

How do you landscape with cinder blocks? ›

Cinder Block Flowerpots

Place your cinder blocks vertically on the floor and put some potting soil in it. Once you have filled the block with soil, sow your seed in the block and water it continuously. Your cinder block flowerpot is ready and can be placed anywhere in your garden.

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 many cinder blocks do I need for a raised garden? ›

20 blocks will give an interior bed area of 4′ x 8′. Leave a side open to bring in the soil until the new bed is filled. No mortar or special installation is necessary unless you desire a bed which is higher than 8″ raised over the surrounding area. Just set them on the ground!

Can you use cinder blocks as planters? ›

So, when nobody was looking, I bought ten cinderblocks for a buck or so each, stuffed them with potting soil, and lined them up where the woodpile used to be. My plan was to forage the yard and woods for plants that would drape down the sides of the cinderblocks so it would look like a raised bed display.

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.

Do cinder blocks leach chemicals into soil? ›

Most studies have found that the chemicals do not leach from concrete, they are tied up in the cement matrix. This includes fly ash (which has mercury and other heavy metals).

What causes cinder blocks to deteriorate? ›

Cracking could be caused by footing failure and/or water intrusion. Disintegration would be caused by water intrusion and the freeze/thaw cycle. Very old block would be more susceptible to freeze/thaw damage.

Do cinder blocks mold? ›

Cinder block walls are strong, long-lasting and resistant to elements such as wind and rain, however, they are still subject to the effects of mold growth.

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.

Can plants grow in cinder? ›

Cinder gives excellent growith to plants, no fungus, no infection. Keeps soil in place when watering since soil mix is very light and tends to fly everywhere easily, like succulent soil mix.

Do cinder blocks make good 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.

Can I plant flowers in cinder blocks? ›

Use Cinder Blocks To Plant Flowers Inside You can create a whole garden wall using cinder blocks. Arrange them in some creative way and plant some colorful flowers inside them. When the flowers grow you will have the most beautiful and colorful vertical garden in the world.

Will succulents grow in cinder blocks? ›

The cement gets very hot in summer and very cold in winter, and the planting holes are not that large, so this was not a good place for a tender plant that needed a lot of root space or moisture. But it was a perfect spot for succulent plants!

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