As promised, I’ve mixed together a new soil mix using sand in the place of cactus and volcanic soil. I did this to maintain the consistency of my mix, but reduce how rich it is in terms of nutrients. Ratios are not quite 1:1:1:1 as in the organic mix, but that’s because I feel substrates used for Lithops, regards of type, should not clump together and form a ball when squeezed. Using equal parts sand in my mix caused it to pack together too tightly, so I reduced the amount of sand. Sadly, I was in a rush and didn’t count my scoops 😦 Roughly, I think this is the recipe:
- 1.5 parts river rock
- 1.5 parts clay gravel
- 1.5 parts perlite
- 1 part course sand
Doesn’t it look a lot like the substrate Lithops grow in naturally? I’m excited to see how these two mixes stack up against the gritty (bonsai) mix!