Greenhouse Winter Prep for Highland Nepenthes in Oregon

Western OR grower: 8x6 Harbor Freight greenhouse, 50% shade cloth, ceramic heater, caulked gaps. Asked shade cloth purpose, removal timing, winter tips.

Shade Cloth

Reduces both heat and direct light. Remove at fall equinox (late Sept) – nights longer, maximize sun.

Winter Investments

1. Wireless thermometer with freeze alarm (heater failure alert).
2. Efficient propane backup heater (no CO) for power outages.
3. Snow removal readiness – greenhouses weak under heavy snow.

Caulking

Excellent – panels leak air. Heating efficiency depends on sealing.