Camelia re-potting mix?
I have a camelia that needs a bigger pot. I have ericaceous compost, but it is quite light, mostly pine-based. The John Innes loam-based ericaceous compost would presumably be better, but not available here. Is there anything else acidic I can add to beef it up and extend the nutrient availability? Is it possible to make a loam-based acidic compost and if so, what from? My garden soil is extremely alkaline so I don’t want to add any of that.