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#1
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build a brick herb box
Hello
I am planning to build a brick herb box after my garden patio. The box will be 900mm high (from patio floor), 5 meters long with 300mm planting width between the brick walls. This will also act as a wall for the garden patio. The brick wall will be half brick (102mm) on each side. I would like to know what I need to consider during the build. Is the brick wall structure (thickness) ok, water proofing, drainage, mortar mix etc? Your advice would be much appreciated. Any good websites? Thanks Rasik |
#2
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build a brick herb box
rasik wrote:
Hello I am planning to build a brick herb box after my garden patio. The box will be 900mm high (from patio floor), 5 meters long with 300mm planting width between the brick walls. This will also act as a wall for the garden patio. The brick wall will be half brick (102mm) on each side. I would like to know what I need to consider during the build. Is the brick wall structure (thickness) ok, water proofing, drainage, mortar mix etc? Your advice would be much appreciated. Any good websites? Thanks Rasik What is the base of the box that the bricks will stand on? When building brick walls they need to be given a sound and stable foundation otherwise it doesn't matter how good your bricklaying is it will fall over. Make sure you leave plenty of weep holes (say every 300mm) at the bottom for drainage. If it doesn't drain freely your plants will die and in the extreme case the hydrostatic pressure will push your wall over, although at 900mm high this isn't likely. Your mortar should be Portland cement and clean fine sand with a dash of fine clay. There is a tendency for amateurs to make the mix very strong but that isn't required. The clay will make the mortar "fatter", that is more adhesive and easier to flow. Look up the best ratio, I forget. Do you have a level and string line and do you know what to do with them? David |
#3
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build a brick herb box
On 12/11/11 7:33 AM, rasik wrote:
Hello I am planning to build a brick herb box after my garden patio. The box will be 900mm high (from patio floor), 5 meters long with 300mm planting width between the brick walls. This will also act as a wall for the garden patio. The brick wall will be half brick (102mm) on each side. I would like to know what I need to consider during the build. Is the brick wall structure (thickness) ok, water proofing, drainage, mortar mix etc? Your advice would be much appreciated. Any good websites? Thanks Rasik Have you considered using flower pots? My herbs are in 12 inch (30 cm) pots arranged together at the intersection of two paths in my garden. See my http://www.rossde.com/garden/garden_back.html#herb. I find several advantages to this. Some herbs can be quite invasive (e.g., mint, oregano) and will crowd out other herbs. Some require more water (e.g., mint) or less fertilizer (e.g., sage) than others. Eventually, some will require dividing (e.g., tarragon). Flower pots allow you to confine each herb and to give each its distinct care. -- David E. Ross Climate: California Mediterranean, see http://www.rossde.com/garden/climate.html Gardening diary at http://www.rossde.com/garden/diary |
#4
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Thanks David
We have a brick layer. So we have a level and string line. We will be using engineering bricks. I believe I need to water proof the inner layer. Which dpm should is best to use? bitumen? The foundation has already been built and is adequate. The foundation width is 600mm wide. Both walls will sit on the same foundation so the passage to the earth is blocked. Water will not be able to weep right down to the earth. Am I correct in assuming the weep holes (300mm apart) is sufficient if the passage is blocked by the foundation? Thanks rasik |
#5
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build a brick herb box
rasik wrote:
Thanks David We have a brick layer. So we have a level and string line. We will be using engineering bricks. He/she ought to know about foundations and weep holes too. I believe I need to water proof the inner layer. Which dpm should is best to use? bitumen? The foundation has already been built and is adequate. The foundation width is 600mm wide. Both walls will sit on the same foundation so the passage to the earth is blocked. Water will not be able to weep right down to the earth. Am I correct in assuming the weep holes (300mm apart) is sufficient if the passage is blocked by the foundation? The water must be able to run out and you obviously don't want it to pool on your patio. Aside from the inconvenience it will have the potential to stain. So where will the water run to? As the box is narrow you will probably get away with only having weep holes on the outside but the water still has to drain somewhere - ask the bricklayer. D |
#6
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build a brick herb box
On Dec 12, 1:05*pm, "David Hare-Scott" wrote:
rasik wrote: Thanks David We have a brick layer. *So we have a level and string line. *We will be using engineering bricks. He/she ought to know about foundations and weep holes too. I believe I need to water proof the inner layer. *Which dpm should is best to use? *bitumen? The foundation has already been built and is adequate. *The foundation width is 600mm wide. *Both walls will sit on the same foundation so the passage to the earth is blocked. *Water will not be able to weep right down to the earth. *Am I correct in assuming the weep holes (300mm apart) is sufficient if the passage is blocked by the foundation? The water must be able to run out and you obviously don't want it to pool on your patio. *Aside from the inconvenience it will have the potential to stain. *So where will the water run to? *As the box is narrow you will probably get away with only having weep holes on the outside but the water still has to drain somewhere - ask the bricklayer. D Would bitumen be toxic to plant life? ISTR we used to be advised NOT to plant potatoes in rings of tires because they could be/are toxic. A little confused; anybody have the skinny on this? HB |
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