Viridis Hortus - Jiffy-Pot are environmentally friendly alternative to the excessive use of plastic in horticulture 100% degradable & approved for organic production Jiffy pots are manufactured from a minimum of 50% wood pulp & 50% coir (to regulate pH levels). These pots gives optimal soil porosity and improved root penetration, whilst the wood fibre gives the pot structural strength. pH 5.0 (+/-1.0), Volume: 450cc Benefits: Air pruning gives strong, fibrous root development Minimal root disturbance & reduced transplant shock when potting-on 100% biodegradable product means no de-potting & waste packaging generation. Quicker Rooting: Quicker rooting is achieved because temperature fluctuations in the root zone are reduced and the average root zone temperature is 1 degree higher than in plastic pots. Reduced Water Consumption The ability to retain moisture in the pot wall can reduce water consumption by up to 20% compared to plastic pots, allowing shorter or less frequent irrigation cycles. Professional Family Business DEFRA licenced No: 7641 Quality Seed Supply - Minimal packaging - Aluminium Foil / Zip locked labelled bags 100% Recycled material - Instructions not attached - See details provided above for cultivation advice.