For a class I propagated Teucrium fruticans (Bush Germander). I did three flats and each one had different media. My 1:1 peat moss & perlite did best. My 1:9 peat & perlite did the worst. Of course I have to write about my thoughts on why the 1:9 mix didn't do as good. The only thing that I can think of is that there is less nutrients which caused slow new growth. But I can't think of anything else? Why wouldn't as many root in the 1:9 mix than in the 1:1? One more thing...does perlite hold too much water which could've had a bad effect on the rooting of the cuttings? Any ideas would be GREATLY appreciated. Thank you for your time!