Jardin Shamrock, Varengeville-sur-Mer

Jardin Shamrock is the world's largest and most important collection of hydrangeas, holding the prestigious National Collection label from CCVS (Conservatoire des Collections Végétales Spécialisées). Founded in 1984 by Corinne Mallet, the 2-hectare English-style botanical garden features over 2,000 varieties from 70 different species, collected from Europe, Japan, China, and America. The garden is organized into three distinct zones: Le Bois du Dragon Vert (Green Dragon Wood) with shade-loving Asian species, Le Jardin Céleste (Celestial Garden) with sun-loving varieties in crop circle patterns, and Le Labyrinthe where beds are dedicated to specific breeders by country.