Top dressing for succulents

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D^L
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Re: Top dressing for succulents

Post by D^L »

Great, thanks Peter. Do you have a reference for the UC Davis work you refer to? Would be great to read it.
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David Lambie
Bristol
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AnthonyT
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Re: Top dressing for succulents

Post by AnthonyT »

D^L wrote: ↑Fri Jan 25, 2019 2:42 pm I have always assumed that angular grit and "sharp sand" tend to pack with larger gaps round them than spheres do, but I don't know any experimemtal evidence that shows that; so if you turn some up Ralph, would be interesting.
It seems to me that any mix of aggregate that includes a finer sand and/or soil component tends to compact over time, wether it be angular or rounded gravel. It would appear, to me at least, that it's the quantity of finer dust/soil/sand that is the issue rather than the shape of the larger constituents. Quite how that insight relates to air gaps and plant roots, i don't know! :wink:

I have used both rounded gravel and more angular grits in mixes, and they both seem to compact pretty much equally over time, everything else being equal, if re-potting has been 'infrequent' :grin:
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