London Garden Consultants - an Independent Garden Consultancy. Marie Shallcross is a member of the Professional Garden Consultants Association With two decades of experience in garden design, landscaping, gardening, horticulture and teaching these skills. You benefit from this diverse skill set, a fresh approach to your problem, and independent advice. Website is in process, but you can reach London Garden Consultants at - marie@londongardenconsultants.co.uk