Shinjuku
Mame
I’m lucky in that I can get Dry Stall locally (1/4” pumice). Since it’s hot and dry where I live, I want to add in more lava (scoria) to my soil mix to help with more water retention. I know of two options for a source:
At the local rock yard, I can fill up a 3.5 gallon bucket with 3/8” lava for $3.50, so $1.00 a gallon. Alternatively, I can order 1/4” lava online (Bonsai Jack, American Bonsai, etc.) for around $9 - $10 a gallon, depending on quantity. Big cost difference.
What are the pros/cons of the smaller 1/4” lava vs the larger 3/8”?
At the local rock yard, I can fill up a 3.5 gallon bucket with 3/8” lava for $3.50, so $1.00 a gallon. Alternatively, I can order 1/4” lava online (Bonsai Jack, American Bonsai, etc.) for around $9 - $10 a gallon, depending on quantity. Big cost difference.
What are the pros/cons of the smaller 1/4” lava vs the larger 3/8”?