PRO-MIX HP BIOSTIMULANT + MYCORRHIZAE is a high-performance, biologically enhanced substrate with excellent structure. Built with a base of premium sphagnum peat moss and a high ratio of perlite, it offers exceptional drainage and aeration that’s ideal for delivering oxygen straight to root systems and fast-growing cultivars. With the addition of a natural biostimulant, this mix supports nutrient efficiency and helps plants thrive despite any environmental stress — with endomycorrhizal fungi that improves root system development and increases water and nutrient uptake. PRO-MIX HP BIOSTIMULANT is particularly beneficial in automated irrigation setups and precision-based nutrient programs that demand consistent performance. If you’re looking for something with the same high porosity without the added biostimulant, look into PRO-MIX HP MYCORRHIZAE — providing reliable structure with essential microbial support. Growers who prefer in an organic-certified alternative with similar biological benefits should check out PRO-MIX MP BIOSTIMULANT + MYCORRHIZAE ORGANIK.