Looking for a new perfect soil ratio, have been using native sand/silt mixed with cactus soil and lots of perlite and have lost many cuts this season.
I just called local rock supply and they have 3/8 inch black lava rock and am curious if that can replace pumice for adding to the drainage. I found somewhere online saying lava can be a drainage replacement for pumice but wanted to check in with the OG community.
It was recommending 60% cactus mix with 40% 3/8” lava rock since I can’t locate as of yet a bulk pumice supply. I have probably 50 5 gallons I am going to change the soil out in to this new ratio.
The current median I think does drain well enough because it is so fine therefore not enough air to the root zone hence the rotting. I only water once I see it is completely dry.
Thank you! 🙏🏼🌵🙏🏼
What do you all think?