Swertia lastii
Swertia lastii, known as Last's Swertia, is a perennial ornamental plant that prefers part shade and medium watering. It reaches a height of 0.3–0.6 meters and blooms in blue and purple hues from July to September. This plant grows well in loamy, sandy, or peaty soils and is suitable for USDA zones 5–8. It is not fragrant, toxic, or evergreen, but it does attract pollinators.
Light
Partial shade
Watering
Medium water
Soil
Loamy, Sandy, Peaty
Height
0.3–0.6 m
Spread
0.2–0.4 m
Zones
5–8
Flower colors