The Stewart Plastics Propagator Cover delivers the controlled microclimate essential for successful seed germination and cutting propagation. Its crystal-clear design maximises light transmission whilst the adjustable ventilation system enables precise regulation of airflow and humidity levels—critical factors in achieving superior germination rates. Engineered to pair seamlessly with standard propagator trays, this cover creates an optimal growing environment that protects developing seedlings and cuttings from external fluctuations. An indispensable tool for serious propagators seeking consistent, reliable results.