Morden Centennial, Rosa 'Morden Centennial', is a Parkland Series rose that flowers all season with especially profuse flushes of rich pink flowers from beginning to end. The lightly scented blooms appear in clusters among healthy, disease resistant foliage before being replaced by persistent red hips. While reliably hardy in zone 3, some success has been reported in zone 2. Own root. Morden Centennial grows to three feet, and has a habit that is upright and bushy. The medium glossy leaves typically have seven leaflets, and its resistance to mildew is very good. It was honored with the Canadian Rose Society's Outstanding Cultivar Award in 1986.