Growing Drosera regia in North Dakota: Meeting the Cool Night Requirement

A Bismarck, ND grower wanted D. regia (king sundew) but was disappointed by the cool-night requirement (30–35°F below zero winters).

Clarification

D. regia is tropical—not an outdoor plant in ND. Cool nights (45–65°F) are mandatory; warm nights cause failure.

Indoor Strategy

• Fall/Winter: place near a window away from heat vents—easy to achieve cool nights.
• Summer: may need air conditioning to keep nights <65°F.

Use Mother Nature's cool seasons to your advantage; the challenge is summer.