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Jul 14, 2023 2:14 AM CST
San Jose, CA Zone 9b (Zone 9b)
tropicofcancer said: I do grow a bunch of succulents in the gritty mix. It is composed of granite grit (actually chicken grit grower size between 1/16 and 3/16 in size), turface (1/16 to 1/4) and pine bark (1/8-1/4). To do this epsom salt and gypsum is added at 1tbsp each per gallon to provide the initial Ca and Mg. This is the basic mix.


What would be the reasons to use epsom salt and gypsum instead of just adding a general purpose time-release fertilizer like Osmocote into the mix?

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