Introducing N. Bernkastel, a bold new winter-hardy ISG hybrid by renowned hybridizer Zijun Li. This variety captivates with its deep, saturated purple, star-shaped blooms—a rare and dramatic hue in hardy water lilies. The striking flowers rise above large, deep green pads, creating a powerful contrast that draws the eye. With exceptional cold tolerance and strong blooming performance, N. Bernkastel combines exotic color with reliable hardiness, making it a standout choice for collectors and water garden enthusiasts alike.
 
For Best Growing Results:
Sunlight: Full sun (6+ hours of direct sunlight daily) for optimal blooming.
Planting Depth: Position the crown 6–18 inches (15–45 cm) below the water surface.
Container: Use a wide, shallow container with heavy loam soil; avoid light or fluffy potting mixes.
Fertilization: Feed monthly during the growing season with aquatic plant fertilizer tablets for vigorous growth and continuous blooms.
Water Temperature: Thrives in water temperatures above 70°F (21°C); tolerates cooler temperatures due to its hardy nature.
Overwintering: Hardy in USDA zones 4–10. Can be left in the pond over winter in zones where water does not freeze solid.
Maintenance: Remove yellowing leaves and spent flowers regularly to promote healthy growth.