This Hydrangea paniculata is a deciduous plant so during the dormant season in early autumn it will lose all its leaves shooting new growth in the spring from April. 

Hydrangea paniculata Petite Lantern is a compact hydrangea with flowers opening lime green in July. Then turning white and changing to dark pink by autumn. Good for planting in patio pots, containers or in the garden. Part shade or full sun conditions. Frost hardy to -25°C 

Eventual height up to 0.8 metres with a spread of up to 0.4 metres.