Hydrangea 'La France' (H) Overview
Hydrangea 'La France' (H) is part of the Horticultural group Hortensia that are also known as Mopheads for their rounded heads of flowers When grown in acidic (ericaceous) soil the flowers develop a blue colour, it is the lack of aluminium in alkaline soils that turn the flowers pink. Adding Aluminum sulfate (in small quantities throughout the year) to the soil will help maintain the blue colour, alternatively adding garden lime (yearly) will help turn your flowers pink. To get the best out of your shrub, protect them from scorching winds and spring frosts that can damage new growth. Adding organic matter to the planting hole and as a mulch around the base will help keep the soil moist and improve the drainage - they like being moist but not soaking wet feet.