There is a very good reason why the rhs granted philadelphus 39belle etoile39 the award of garden merit 40agm41 this scrumptious deciduous shrub is delightful in early summer when it produces a profusion of single white blooms which have the added attraction of a central splash of lilac but even more amazing is the perfume that emanates from these simple flowers a heady orange blossom perfume fills the air sending fragrance through the garden it not only attracts humans but bees