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By Adyt

United Kingdom Gb

how much perlite should I
mix in with seed compost



None if you are really going to use it for sowing seeds, though this isn't the best time to be doing that.

23 Dec, 2017


If you are starting from scratch with plain peat, I would mix in 1 part perlite for every 4 parts peat. If using coconut fiber, about 1 part perlite for every 5 parts coconut. If you are making a John Innes mix, probably none, as MG says.

24 Dec, 2017


Half and half works for me.

29 Dec, 2017

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