Those Eugenias are not too particular. They do seem to like the soil a bit
acidic. I put about 4 shovels of peat 4 shovels of peat with perlite and 1
shovel of coffee grounds, one shovel of compost, and one shovel of cricket frass.
The cricket frass is organic and I have been adding some monthly to most of
my trees including in ground trees and potted trees. I have used rabbit manure
and chicken manure also in the past. I stockpile the ingredients above in barrels
and garbage cans and mix them as I up pot my plants.
walmart or HomeDepot sell a Lambert peat that I have used in the past.
https://www.amleo.com/lambert-retail-peat-moss-3-8-cf/p/LRPMIt used to be $7 a bag at Wal Mart? who knows now?