Checking Drosera Hibernaculum Health in Spring

A California grower asked how to tell if a D. filiformis hibernaculum is healthy and when to expect growth.

Expected Emergence

In CA (non-mountain), plants should already be growing. Even with recent snow/hail, nursery dewthreads show new growth.

Health Check

• Gently peel back outer brown layers.
• Look for green tissue at the center.
• No green = plant died in dormancy.

Common Causes of Loss

Fungus, excessive wet/cold, poor drainage. Dewthreads are especially fungus-prone.