Overwintering Container Alstroemeria (Peruvian Lilies) in a Cold Mudroom

Your potted Alstroemeria can winter in an unheated mudroom (above freezing) with minimal care — but don't let the soil dry out completely.

Storage Checklist

• Temperature: 35–45°F (2–7°C) — cold but never freezing.
• Light: Darkness is fine; the plant is dormant.
• Water: Water sparingly — just enough to keep soil from becoming bone-dry. Check monthly.
• Drainage: Critical. Ensure pot drains freely; standing water + cold = root rot.
• No fertilizer.

Spring Wake-Up

When frost danger passes, move pots to a sheltered shady spot for 10 days, then into sun. Resume regular watering and feed with a balanced fertilizer. Divide crowded clumps every 3–4 years in early spring for best flowering.

Alstroemeria is hardy to Zone 6–7 in ground, but containers need this extra protection since roots are more exposed to cold.