Made in Denmark since 1969, stonewool is widely recognized as the ideal growing substrate. For any growing application, stonewool offers speed, ease of use, and cleanliness. Grodan stonewool is known for its quality, consistency and performance.
Perlite is made from volcanic glass and will never dissolve or rot. All plant roots need air - perlite mixed in the soil allows the life giving air to reach even the tiniest of roots. Perlite also helps water to soak into the soil instead of running off, giving your plants the needed moisture during dry spells. We also carry vermiculite which holds more water.