Scentara Double Blue Lilac (Syringa x hyacinthiflora 'SMNSDTP') is a striking deciduous shrub known for its lush, double-petaled blooms and rich fragrance. The flowers are a deep, bluish-purple hue, appearing in dense, conical clusters that cover the branches in mid to late spring. This hybrid lilac boasts a more refined texture than common lilacs, with ovate, dark green leaves that provide a lush backdrop for the colorful floral display. The plant has a rounded, upright habit and makes an excellent specimen or hedge plant. Its strong stems and profuse blossoms are not only visually impressive but also attract pollinators such as butterflies and bees.
- Size: Height: 6 to 8 feet (1.8 to 2.4 meters). Spread: 5 to 7 feet (1.5 to 2.1 meters)
- Sunlight: Requires full sun for best flowering (6+ hours of direct sunlight daily)
- Soil: Prefers well-drained, moderately fertile soil; tolerant of a range of soil types
- Water: Water regularly during establishment; once established, it is moderately drought-tolerant
- Pruning: Prune immediately after flowering to shape and encourage more blooms the following season
- Fertilization: Apply a balanced, slow-release fertilizer in early spring
- Hardiness: Cold hardy in USDA Zones 2–8
- Pests/Diseases: Resistant to powdery mildew; monitor for common lilac issues like scale or borers
- Other Notes: Benefits from good air circulation to reduce risk of fungal disease