Why Won't My Drosera capensis Flower? Photoperiod Matters

A grower's 1.5–2 year old D. capensis on a south windowsill (5–8 hrs direct sun) hadn't flowered. House temps 69–70°F summer, 77–78°F winter.

Flower Trigger: Day Length

Many sundews flower in response to increasing photoperiod. Winter windowsills often provide insufficient day length.

Solution

• Add fluorescent lights (100–150W equivalent CFL or 40W shop lights).
• Run 16 hours daily.
• Start in spring to align with natural cycle.

Current Care Is Good

Peat/perlite, tray watering, temps are fine. Light duration is the limiting factor.