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linaria_z7_ch

sterile potting soil: how to exactly?

linaria_gw
9 years ago

Hi there,
I want to test making Dahlia cuttings and do have a very detailed description of the process. I found it on this site, a link to an article by Portland Dahlia.

They mention to use "sterile potting soil",
so I wonder how to achieve that. I planed to use a soil less seed starting mix, based on sand, some peat moss and some composted wood fibre stuff (according to the writing on the bag).

Should I treat this stuff somehow or would you use it straight from the bag?

Thanks, bye, Lin

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