Duncan Coombs is a qualified botanist and horticulturist, keen plant hunter and RHS garden advisor. Following time spent in biological research and development, he has spent many y...view moreDuncan Coombs is a qualified botanist and horticulturist, keen plant hunter and RHS garden advisor. Following time spent in biological research and development, he has spent many years lecturing in decorative horticulture. Much of his professional development involves visiting and liaising with gardeners and their gardens, plus nursery owners and their nurseries, during which he has amassed extensive plant knowledge.view less