how cold can impatiens tolerate
Impatiens are tender, warmth-loving plants that cannot tolerate frost and start to struggle well before freezing.
Quick Scoop
- Most impatiens are happiest between about 60–75°F (15–24°C).
- They begin to experience stress if temperatures stay below about 50°F (10°C) for long.
- Light frost or temperatures around 32°F (0°C) can severely damage or kill them; even a brief dip to around 30°F (-1°C) may only rarely be survived and often causes defoliation.
- Many gardeners treat impatiens as annuals in regions with cold winters because they cannot overwinter outdoors where frost is common.
Practical rule of thumb
- Try to keep impatiens above 50°F (10°C) whenever possible.
- Do not plant them outside until the danger of frost has passed in your area, and be ready to cover or bring them in if a cold snap towards freezing is forecast.
If the night forecast is headed for the mid‑40s°F (around 7°C) or lower, it’s time to protect your impatiens—move containers indoors or under shelter, or cover plants in the ground.
Information gathered from public forums or data available on the internet and portrayed here.