Question for Al (tapla) re bark in gritty mix
I live in Australia and just starting to experiment with the "gritty mix" after being alerted to it by another Aussie pkozul.
Despite a lot of searching on the forum I can't determine if it is Ok to used aged/composted bark. Or does it have to be fresh bark? What about nitrogen draw down?
A more fundamental question- what is the purpose of bark in the mix?
I'm a grower of Amaryllid bulbs and Cycads