The best florists in the world

Castor Fleuriste, Paris

Louis-Géraud Castor made his name dealing French art deco antiques for two decades; today he creates floral arrangements for Paris’s most discerning characters and houses, from designer Alexandre de Betak to Hermès and Gagosian. Possessed of a talent for pairing flowers in painterly combinations that are simultaneously simple and mind-boggling,…