No it doesnt. Just helps drainage, and small rock's arnt really that good. The roots need to be able to spread out and move around, they can move the perlite while they grow, but rocks would give them less place to go, and big roots = big buds and big plants.
LIP Reviewed by LIP on . bal bla bla bla perlite - helps to drain soil and helps air flow threw the soil just a lil bit better, helps roots to cling on to something to help the plant hold steady! perlite is very important in any case! vermiculite - helps dry soils hold moisture, soil will break up alot easyer, makes it kind of softer helps the roots grow down ward faster for water on dry days. vermiculite is good to have in pour soils but over all in regular soil its really not needed. "everyone has their own methods on Rating: 5