10/10/2026
An approaching frost does not have to mean the end of the tomato harvest. Tomatoes that have matured enough on the vine can continue ripening indoors, giving you ripe fruit days or even weeks after temperatures outside become too cold.
Start by choosing full-sized, mature green tomatoes. Good candidates usually have glossy skin and may show a lighter green or whitish area near the blossom end. Very small, immature, dark green tomatoes are much less likely to ripen successfully.
Arrange the tomatoes in a single layer on a tray or inside a cardboard box, leaving enough space to check each fruit easily. Keep them around 65–70°F (18–21°C) and away from direct sunlight. Tomatoes do not need a sunny windowsill to ripen.
To speed things up, place a ripe banana or apple nearby. These fruits release ethylene, a natural plant hormone that promotes ripening.
Check the tomatoes every few days and remove any showing soft spots, mold, or decay before problems spread to neighboring fruit.
Avoid storing unripe tomatoes in the refrigerator. Cold temperatures slow the ripening process and can negatively affect flavor and texture.
With a little indoor patience, the final green tomatoes of autumn can still become part of the season’s harvest.