Need silica sand but can’t find any at the hardware store? Or maybe you only need a little and not a 50lb bag of it. Either way, we’ve got you covered! This is the same sand we use in our nursery. It is #20 silica sand so it is coarse enough to provide drainage without becoming compacted which is important for many carnivorous plants. It also makes an excellent top-dressing to inhibit fungus gnats and help reduce the growth of algae.
#20 Silica Sand
This sand seems to contain very few impurities, however mineral content can vary from one batch to the next so rinsing with distilled water prior to use is still advisable.