Cool Night Protection for Tomato Seedlings

45-50°F nights won't harm transplanted seedlings — they actually promote hardier growth. Cold damage only becomes problematic during flowering/fruiting stages, which you're weeks away from.

No Action Needed

• Don't struggle moving heavy containers indoors
• Cool temperatures strengthen stems and root development
• Monitor for frost warnings only (below 40°F)

Your seedlings are safer outside adapting to real conditions than coddled indoors. This temperature dip is beneficial, not threatening.