Using Lava rock flour, lavender, orange peel and microorganisms as a soil inoculant. Soil additive according to Section 2 of the Fertilizer Act to increase biological activity.
With the orchids, the soil activator is used when the orchids are "dipped". Once a month, stir 2 g (equivalent to half a level teaspoon) into 1 liter of immersion or irrigation water. The rock flour does not dissolve, so you should pour the stirred cloudy water directly or immerse the orchids in it.