Staghorn Sundew (Drosera binata) Dying Back in Summer? It's Likely Dormancy

Most Likely: Seasonal Dormancy

Many temperate sundews (D. rotundifolia, D. filiformis, D. anglica, D. binata forms) begin dormancy in late summer. Blackening shoots, leaf drop, and apparent "death" are normal. D. anglica is often fully dormant by August.

Check for Pests First

Before assuming dormancy, inspect the soil surface for tiny mounds (mole-hill-like) — these indicate cutworms. They eat roots and stems, causing sudden collapse. If found:

• Repot immediately to remove caterpillars and eggs.
• Or use a soil-penetrating systemic insecticide.

Next Steps

Send a photo for confirmation. If it's dormancy, reduce watering slightly, keep cool, and wait for spring regrowth. If pests, treat aggressively.