Winter Care for Oxalis deppei 'Iron Cross' in Zone 7b

James grows Oxalis deppei 'Iron Cross' in a large plastic pot and faces zone 7b winters. The plant is rated for zone 8+, so leaving it outdoors risks freezing the roots.

Recommended Overwintering Strategies

• Dig and store bulbs. Lift the bulbs, clean them, and store in a paper bag in a cool, dark, frost‑free basement.
• Pot‑in‑garage method. Allow the plant to go dormant naturally as temperatures drop, then move the pot to an unheated garage or shed where the soil won't freeze. Water sparingly, just enough to prevent desiccation. Return outdoors after the last frost.

The second option is easier and preserves the established root system. Either way, protect the bulbs from freezing solid.