HYDRANGEA macrophylla
´Générale Vicomtesse de Vibraye´

One of the hardiest and most free-flowering cultivars, growing tightly upright, 1.2 to 1.5 m tall. Leaves light green, turning partly dark mahogany in autumn. Inflorescence large (up to 25 cm!), semi to full spherical, appearing bright light blue when grown on acidic soil. An excellent cultivar (a hybrid made by von MOULIERE in 1909) that should have been made available in a number of varieties or to many gardens much earlier (as Professor Warda rightfully lamented). A blue chip with regards to hydrangeas for the garden. H, K, S. Zone 5b.