Growstone Hydroponic Substrate 1.25 Cubic Feet

Growstone Hydroponic Substrate is the perfect growing media for vegetables, herbs, fruit and flowering plants; from lettuce and basil, to tomatoes, cucumbers, strawberries, gerbera daisies and orchids. It can be used in hydroponic systems as simple as manually irrigated containers, or as advanced as automatically drip irrigated containers, Ebb-Flow systems, and NFT tables. Growstones are engineered to provide an effective ratio between aeration and moisture. While other substrates maximize either air or moisture, Growstones allow for both moisture absorption and drainage. Most important in any growing medium is the air in the medium after drainage. Plant roots require oxygen for growth process respiration. Growstones make for an ideal substrate due to their small and large pores. When irrigated, water is held in the micro pores but quickly drains through the macro pores, allowing air to flow through the substrate, bringing oxygen to the roots and removing carbon dioxide from the root zone. Growstones are reusable. To reuse Growstones in a second crop, simply remove old plant material from the container and shake vigorously to displace most of Growstones attached to roots. If necessary, to get rid of the root ball (as is the case for crops with strong roots such as tomatoes) simply cut the base of the stem at the root ball level, and remove the root ball. Some Growstones aggregates will be clinging tightly to these roots and might be lost. Some finer roots actually grow into the aggregates and might remain attached to the media, but most will fall out. Add some new Growstones to replenish the system and replant again. Growstones are manufactured using up to 98% waste materials. They replace mined materials like pumice, perlite, clay pellets, and stonewool, reducing environmental degradation. At the same time, since the product largely consists of recycled glass bottles, a large amount of glass waste is given a new life, keeping it from the landfill.