Quote:
Originally Posted by katsucats
I don't know that roots would instantly die upon meeting mineral deposits touching the velamen. At least in my experience, this has never happened. Mineral deposits are more visible on LECA, but I can't imagine why any other medium wouldn't also have them, including medium that must dry between watering, like bark.
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It’s not so much the mineral deposits as it is the porosity of the LECA, and that’s mostly an issue to the surrounding environment.
If the LECA is quite dry, it can literally desiccate a root tip that comes in contact with it.
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