Triangle Flower Bed

Denise Regnier
by Denise Regnier
3 Materials
5 Hours

Triangle flower bed made from reclaimed cinderblocks and mulch I've been working with on. Cost will depend on what cinderblocks or bricks used for the front, how big the flower bed is, and how much soil/dirt has to be purchased. I'm putting the actual cost I've put put of pocket but it could be more or less.

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Here is an updated picture of this area from June 2023. I keep adding perennial plants ever year to this flowerbed. There is monkey grass growing in some of the cinderblocks now. I've added a metal triangle for some new potato plant vines to grow on this year. It was a windmill but the top broke off after a bad storm. It still blocks the neighbors from seeing into my yard too.

Triangle flower bed

Second year of the flower bed. I've added more and different plants. As they fill in over this season it will look even better. I've found out not all plants like mulched dirt so some of last years plants did not make it. Trial and error. All is good. Good luck on trying this in your own area.

Layout the flower bed

Layed out the design on the ground of were I felt the new flower bed would look and how big it would be. This is in a corner of the house. A fence on the right and back with the house on the left. The front opens up to the backyard.


I moved some cinderblocks that I had from another flower bed that was not working due to it being too much in the shade. I moved the cinderblocks along the front trying to follow the line on the ground. I was also working with tree roots above the ground in the area. I didn't want to buy more cinderblocks so it took a little bit of time to get them as close to filling the layout on the ground as close as possible.

Dirt time - front view

Now it's time to fill the new flower bed with dirt. Little did I know it was going to take so much dirt to fill it. I used some inert mulch that I've been working on for 2 years of pine needles, leaves, dirt, and ash from the firepit. I also then bought 10 bags of 2 cubic feet of container soil that went on the top once the free dirt was in place.

Back side of the dirt

Here is a picture of the back side of the flower bed standing in the corner of the yard.

Sheet metal going up

Now it's time to put the side panels up. I used green fence posts of different sizes depending on how high the metal siding was going to be. This can be all the same size if you want. I liked the step sides as not to make my neighbors think I was trying to block all the mess on their property. I was able to cut one sheet to get the tallest panel and the smallest one out of one sheet. I them cut one sheet in half to get the other size. I did one last cut for another smaller and the medium panels. Make sure you use gloves with the metal sheets or they will cut you.

Side view of the panels

After the side metal sheets were cut I drilled the holes through the green poles and through the metal sheets. Screws and nuts used to hold the metal sheets to the green poles.

Front view

Put some flowers in, water, and let it all grow. This is the picture the first year. The first picture is this years. I may eventually put cascading plants in the cinderblocks holes but I'm not sure what ones will work best as partial shade plants.

Here is an updated picture of the triangle flower bed from 2022. It's still growing nicely and the metal on the two sides doesn't get hot and kill the plants.

Here is an updated picture as of 2023. I just finished adding solar lights so here'swhat it looks like at dust.

I've added a metal triangle end of last year. I keep adding new perennial plants each year for a few dollars. Try to plant the bigger, taller, and fuller ones in the back or sides. Keep the smaller clusters toward the middle and front.

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3 of 7 questions
  • Debra Debra on Apr 16, 2021

    Doesn't the metal get hot? I would worry about the heat affecting the plants.

  • Alice Alice on Apr 15, 2022

    Hi, first I must say your garden looks lovely, you did a very nice job. I am wondering if I missed something...why did you want the tin panels? Why not enjoy the garden from all angles?

  • Aprile Aprile on Apr 07, 2023

    very clever - how about painting the cinder blocks and then planting pretty flowers inside them; that would look so pretty.

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  • Denise Regnier Denise Regnier on Apr 13, 2023

    Thanks for viewing my project. Unfortunately I was unable to level the cinderblocks. There is a very large Water Oak tree close to flower bed. There is a very large root from the tree right at the surface. The other roots were in the ground. The only thing I could do is raised all the others to match the highest one. Thanks for the comments. I hope you get the ideas you need. Good luck.

  • Carol Martin Carol Martin on Apr 03, 2024


    This is brilliant. So unique. I can envision metal sculptures attached to the paneling.