Frozen Mandevilla: Slim Odds for Indoor Recovery After 20°F Exposure

A mandevilla left out in 20°F nights is likely dead. These Brazilian tropicals need indoor transition below 50°F. If attempting rescue:

Hail Mary Protocol

• Cut back by 2/3.
• Cool room (50–55°F).
• Minimal water: 1–2 cups every 3 weeks.
• Watch for new growth 2 months.

50/50 chance at best. Buy a new one in spring and bring it in early. Lesson learned: tropicals hate frost.