Overwintering Pond Cannas Without a Basement

You have cannas in a pond basket and need a basement-free overwintering method. Options:

• Cool, dark, dry spot above 40°F (4.4°C) and below 50°F (10°C).
• Trench method: Dig an 18-inch-deep trench next to the house on a south/east exposure, bury rhizomes, and mulch with hay bales.
• Deep yard trench: Bury plants, cover, and mulch heavily with straw to prevent ground freezing (works for trees/shrubs too).

These techniques keep rhizomes cool but not frozen until spring.