Answer from NGA
August 19, 2010
|Most tomato plants are winding down in late August. As long as your weather remains above 50F, your plants will continue to grow but it's a little late in the season to expect any flowers and newly developing fruit to have time to develop into edible fruits before cold weather sets in. To help the almost ripe tomatoes on your plants to ripen, pinch off the stem tips so no new growth will be produced. This will redirect the plants' energy into ripening the fruits before your first frost of the season. Hope this answers your question.
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