A polytunnel is the best addition to any garden! With more than 30 years of experience growing in polytunnels Hans will answer all your questions about models, siting, cost, growing systems, rotation, propagation, watering, soil fertility, suitable crops and best varieties and an all year round growing plan. Practical sessions include  seed sowing and propagation. His golden rules for buying and using a polytunnel have gained nearly legendary status and have benefited hundreds of gardeners all around the country who have attended his courses over the past 20 years.