Quote:
Lars what are they potted in ? looks like clay pellets . Gin
|
I am following a slightly modified version of PET culture which Ramon pointed me too. This is
not yet tried and tested and is a response to growing my plants in substrate that dried to quickly in the past.
The bottom 1/4 of the pot is filled with 2-4mm hydroleca, then comes a layer of epiweb and then CHC (Cocunut hisk chips) mixed with perlite. In larger pots I put a little epiweb into the CHC up to 3/4 of the height of the pot to create air pockets in the substrate. The idea is that this prevents the CHC from staying soggy, which is possible in big pots.
The general idea of the culture is that the pots can stand in saucers of water or another type of reservoir during summer. The epiweb isolates the main substrate (CHC) from the water reservoir and prevents rotting.
I have tested part of that theory and indeed the CHC stays dry when the bottom of the pots are in water. And I left a little of watter in the trays during warm weather after repotting. This should in theory help root development as the roots are drawn towards the moisture. But again this is
not proven.