ᐅ Using granite palisades for raised garden beds with a dimpled membrane?
Created on: 13 May 2024 04:51
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Coletrickle_7808
Hello, as a tribute to our late son, we want to plant a tree for him in the garden. It is a flowering cherry tree.
The tree is intended to be the visual centerpiece of the garden.
Therefore, I have built a raised bed from granite palisades.
These are 75cm (30 inches) high and will ultimately protrude 50cm (20 inches) above ground level. Nearby there will be a wildflower meadow; here the palisades are 50cm (20 inches) high and will stick out 30cm (12 inches) from the ground.
I applied 10-15cm (4-6 inches) of frost protection material underneath, compacted it, and then poured the concrete. The palisades are each set in concrete to about 25cm (10 inches) and 20cm (8 inches) respectively.
Now everything should slowly be refilled with soil.
Does the dimpled membrane (often recommended) have any purpose other than preventing soil from falling through small gaps? Granite is a stone that generally does not absorb moisture.
In this case, I would place the dimples facing inward so that the membrane lies flat against the stones.
The tree is intended to be the visual centerpiece of the garden.
Therefore, I have built a raised bed from granite palisades.
These are 75cm (30 inches) high and will ultimately protrude 50cm (20 inches) above ground level. Nearby there will be a wildflower meadow; here the palisades are 50cm (20 inches) high and will stick out 30cm (12 inches) from the ground.
I applied 10-15cm (4-6 inches) of frost protection material underneath, compacted it, and then poured the concrete. The palisades are each set in concrete to about 25cm (10 inches) and 20cm (8 inches) respectively.
Now everything should slowly be refilled with soil.
Does the dimpled membrane (often recommended) have any purpose other than preventing soil from falling through small gaps? Granite is a stone that generally does not absorb moisture.
In this case, I would place the dimples facing inward so that the membrane lies flat against the stones.
Coletrickle_7808 schrieb:
Every child gets a tree; for our son, it should simply be something special,Yes, but honestly: no tree belongs in a basin. Whatever the reasons for planting a tree, it belongs in the ground, and that's that.N
NatureSys14 May 2024 23:45ypg schrieb:
Yes, but honestly: no tree belongs in a basin. No matter the reasons for planting a tree, it should go directly into the soil, and that’s it. Everyone is entitled to their personal opinion. However, that is not the main point here. I believe such a plan should be respected, and the original poster should be advised on whether a dimpled membrane (also known as a drainage membrane) is necessary or not. In my experience, some type of barrier should be used to prevent soil from squeezing through the gaps. However, I am not sure whether a dimpled membrane or some kind of geotextile fabric would be the better choice.
NatureSys schrieb:
I think one should respect such a plan and help the OP with it,You are right. However, a forum is also meant to identify potential mistakes, even if they were not asked about. So if you point out that a tree might be harmed, that should be fine, right? Regarding the question: a dimpled membrane is not harmful but is only used to protect against soil erosion.
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Coletrickle_780815 May 2024 05:10ypg schrieb:
You’re right about that. However, a forum is meant to help identify potential mistakes, even if they weren’t specifically asked about. So if someone points out that something might not be good for a tree, that’s okay, isn’t it?!
Regarding the question: a dimpled membrane is not harmful but only serves to protect against soil erosion. I said I respect your opinion.
But that wasn’t my question and it’s not a mistake either. So let’s stay calm. The tree is planted in soil and naturally grows downward into it. That doesn’t harm the tree, it’s nonsense. This is something you would have to expect if you are dealing with a
In that case, no tree should ever be planted, for example, in a raised bed or something similar.
If you have nothing constructive to add to the question, it’s better to hold back.
The thread can be closed. I have now simply used a dimpled membrane with the dimples facing inward, placed 10cm (4 inches) below the top edge of the retaining wall. Pine bark mulch will be added on top.
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Alfredlima15 May 2024 12:46At our place, the lower "crack area" was partially sealed with PU foam. Otherwise, the soil is directly against the "wall." So far, after 10 years, there have been no issues with this!