Rose Ray and Caro Langton run a successful 'green interior' company called Ro Co, which is dedicated to transforming urban spaces with purifying tropical planting designs. They are the authors of the international hit, House of Plants, and the first indoor plant propagation handbook, Root Nurture Grow, both of which have been translated into multiple languages,continuing to help urbanites choose, nurture and style their cacti, succulents, air plants and tropical plants.