Products designed with the environment in mind Self-grow Hydro Herb kits are ready to grow indoors, hydroponically without he need for soil. Herbs take six weeks to mature and can last for years there after.. Every component of the kit is either recycled and recyclable or entirely biodegradable, really designed with the environment in mind — ideal for the current times.. The wine bottles that form the largest part of the kit are reused locally minimising any carbon production from melting the glass down or transport. We use capillary matting that is recycled and the plastic bottles in the kits are also made from recycled plastic that may itself be recycled.. The Jiffy Pellets are made of coir (ground coconut husk) rather than peat, therefore not contributing to the reduction of peat bogs. The cork lid/place mat comes from renewable sources in Europe as do the natural rubber bands. Terracotta pebbles used in the kit along with the cork and natural rubber band are all biodegradable. Hydr