Concrete Pot & pH

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Post  Dave Leppo on Wed Jul 24, 2019 2:27 am

I made a pot from Hydraulic Cement.  The outside is made with small local stones, to look like a scale of, say,  a retaining wall.  (Maybe I'll post a photo, but it would be a first for me on this forum)

The tree I intended for this pot is a Yew (Taxus) which prefer an acid soil < wrong >.  Will the concrete pot work, or will the tree dislike the alkaline pot, or is there something I can do to mitigate the effects, like seal the inside, soak it with vinegar, or something?

Thanks!

-Dave


Last edited by Dave Leppo on Sun Aug 04, 2019 10:14 pm; edited 1 time in total

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Post  Dave Leppo on Sun Aug 04, 2019 10:12 pm

So I realized my assumption about yews liking acid soil was totally wrong. The tree should do well in the concrete pot.

Oh, well. . Never stop learning, right?

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Post  David Brunner on Sun Aug 04, 2019 11:36 pm

Hello Dave - there are more factors to consider than just pH. The composition of the concrete you used could have substantial or no consequence. The big problem with most concrete vessels is the leaching of soluble minerals and elements into the soil solution. Concrete in itself is not a consistent product as it is most often produced locally and the mineral composition from different suppliers can vary substantially.

You made this for your tree - try it! See how it works. Your experience with your local materials will serve you best. I would simply recommend that the vessel has very good drainage and that you keep the soil solution well flushed with water; that way if any troublesome elements or minerals might build up you will keep them at bay.

And remember to keep up the "feeding" regime. My guide had always been "weakly weekly".

Yours,
David B.


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Post  john blanchard on Mon Aug 05, 2019 5:31 pm

http://ibonsaiclub.forumotion.com/t18356-cement-pot-question

Try this thread, there's some useful tips.
john blanchard
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Post  Dave Leppo on Sat Aug 10, 2019 12:39 pm

Thank you, David and John.

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