Scentara Pura® is a hyacinthiflora lilac, the most fragrant type on the market. It earns its name from its pure purple flowers and deep, true fragrance. Fresh green foliage resists disease and keeps the plant looking good even when it’s not in bloom. Warm climate gardeners should especially take note of Scentara Pura lilac: it requires less chilling than other lilacs, so performs better when winters are mild.. Mature Size: 6′ x 6′. Full Sun (6+ Hours).