These large shrubs are hybrids of R. rugosa and various garden roses. They are generally very beautiful and fragrant; their blooms varying from single to fully double. Most varieties are repeat-flowering and some bear large hips in the autumn. Rugosas are extremely hardy and disease resistant, and will thrive in poor sandy soils and coastal areas - even growing on sand dunes. They are usually very thorny; ideal for creating impenetrable hedges.