I read an intriguing garden column (many years ago) in the Redding, CA newspaper that suggested one way to get tomatoes to ripen outdoors in Autumn. It said: "A rule of thumb is, in the fall, take off all leaves and stems and all fruit that will not have time to develop before frost. You'll end up with skeletal vines and bare fruit, which is exactly what you want, since now all the plant's energy will go into ripening that fruit."That might work in the mild climate areas of southern California or south Florida, but here in Northern California (and Redding is in far Northern California), you're asking for a quicker end to tomato season if you do that. November temperatures will typically dip down into the 40's here; in late November, nighttime lows in the 30's are quite likely here. When nighttime temperatures are in the 40's and below, fruit development slows to a crawl and causes other problematic issues.  Even here in the milder USDA Zone 9 Sacramento region, harvesting red tomatoes in mid-November is an iffy proposition, at best. The typical Sacramento gardener Thanksgiving trick: harvest the remaining tomatoes the day before. Immediately cut off the damaged, ugly portions. Serve the miniscule, pretty remains to Thursday's dinner guests, chopped and mixed into a salad. "Why yes, we can harvest tomatoes on Thanksgiving!" Please don't ask to see the whole tomatoes, though. You might lose your appetite.

As the fall weather finally begins to turn cooler, gardeners are faced with this annual dilemma: will those green tomatoes in the garden ripen before temperatures start plummeting into the low 30’s? Depending upon where you are located, that question might start occurring to you in September, in the colder regions of the U.S. In many areas of California and other USDA Zone 9 climates, and perhaps parts of Zone 8, fresh garden tomatoes remain edible until late October or early November. They may not be pretty...but they are still a heckuva lot tastier than any tomato you'll find in a grocery store. By mid-November, remaining tomatoes are subject to harsher, colder, wetter weather leading to more outbreaks of blight diseases, insect infestations and bird pecking.

Are you tempted to harvest those green tomatoes, now, hoping they'll ripen up indoors? Here are a few tips.From the horticulture department at Texas A and M:

How do you tell when a green tomato, harvested early to prevent freeze damage, will ever turn red and ripen? This can simply be done with a sharp kitchen knife. Harvest a tomato typical of the majority of green tomatoes on your plants. Look at size but pay particular attention to fruit color. Slice through the center of the tomato. Closely examine the seed within the fruit. If the seeds are covered with a clear gel which cause them to move away from the knife, then that fruit will eventually turn red and ripen. If the seeds are cut by the knife then those fruit will never properly ripen. Compare the color and size of the tested fruit when harvesting tomatoes on your plants. Most similar fruit will eventually ripen and turn red.From Colorado State University:Cooler September temperatures help fruit to ripen because the red tomato pigments, lycopene and carotene, are not produced above 85 degrees F; nor is lycopene below 50 degrees F.As late September approaches, gardeners often try to extend the life of their plants by covering with cloth or plastic. Covering plants works well for nearly red tomatoes, but not as well for mature green ones. Though foliage may sometimes be saved, research shows that chilling injury on green fruit occurs at temperatures of 50 degrees and decay losses rise markedly on fruit exposed to 40 degrees F. Red ones well on their way to ripening tolerate colder temperatures.Before frost hits and plants go down, pick and bring fruit indoors to ripen. Clip fruit with a very short stem piece left on but one that’s not long enough to punch holes in other tomatoes. Stems ripped out of fruit will open them to decay. 

Eliminate (immature) green fruit, as research shows it’s more likely to spoil than ripen and never develops the flavor consumers want anyway. Mature green fruit will develop good flavor. Mature green tomatoes are well sized and have turned light green to white. If cut open, seeds are encased in gel and no empty cavity space is present.

In addition to mature green, sort and store fruit by these groups as they will ripen at similar speeds. Fruit may be "turning" with a tinge of pink color showing, "pink" with 30 to 60 percent color showing, "light red" with 60 to 90 percent color present, and others "fully red" but not soft.

Store mature green tomatoes at 55 to 70 degrees F. Once fruit is fully ripe, it can be stored at 45 to 50 degrees F with a relative humidity of 90 – 95%. 

Recommended refrigerator operating temperatures of 40 degrees are certainly too cool to ripen mature green tomatoes and are colder than desired for ripe ones. Ripening enzymes are destroyed by cold temperatures whether in the garden or in a refrigerator. Ripen tomatoes in well-ventilated, open cardboard boxes at room temperature checking them every few days to eliminate those that may have spoiled. Mature green tomatoes will ripen in 14 days at 70 degrees F and 28 days at 55 degrees F. 

The tomato heads at UC Davis recommend storing a small amount of green tomatoes in a carton box on fiber trays or paper layers.

One way to add some air circulation to the bottom, especially in warm conditions: store the tomatoes in a fruit box that contains a perforated plastic liner.Hobby farmer Linsey Knerl offers these ideas for saving green tomatoes:

Get a rope. By pulling up your plants (root and all, if possible) and hanging them right-side up in a garage or basement, you can prolong their time on the vine for a few more weeks. Just string up some clothesline or heavy rope across one wall, and clip the tops of the plant to the rope with clothespins or binder clips. Try to avoid too much sunlight, or your tomatoes will spoil or ripen unevenly. A temperature of 60-72 degrees is ideal. Go the paper route. My grandma used this trick to ripen up green ones over a period of a week or two. Pick only the green tomatoes without cracks, holes, or blight, wrap them individually in newspaper, and place them in a single layer in the bottom of a wooden crate or basket.

Save the plant, or take cuttings.

Depending on your latitude, this may require some alternative sources of bright light. For everyone, propagating a tomato cutting or saving the plant can benefit from adding bottom heat by using a propagation mat. Cuttings or plants should be placed in a room or greenhouse where the temperature stays above 50 degrees, ideally between 60 and 70 degrees.

Saving an entire tomato plant takes some forethought. Planting them originally in a container can ease the process. Using a container that lessens the chances of that plant getting overgrown with encircling roots is ideal. Click on the Smart Pots info page about how Smart Pots fabric containers “air-prune” plant roots to keep them from choking your plant. Yes, that is a blatant plug for one of my sponsors…but it works!

When you’re ready to move the plant indoors or to a greenhouse in a sunny location, think about the obstacles that lie ahead (other than lugging a plant indoors). Dig around the soil, looking for ant colonies or insect/tomato worm eggs/pupae. If you find them, I would advise against saving that plant. You may have an ongoing battle with ants, aphids, whiteflies and tomato worms. Indoors! Don’t worry about trying to save any existing tomatoes on the plant. You won’t. That’s a lot of stress on a plant. The existing fruit and flowers will probably fall off or not ripen very quickly. Before your move the tomato plant, cut back the entire plant so that it’s only about 12 inches tall. Thoroughly clean off the remaining leaves and stems with a good blast of water. You may want to invest in a package of yellow sticky traps to monitor for whitefly infestations, especially.

If you are still keen about growing a tomato plant indoors in the winter, read this post from the Farmer Fred Rant blog page that goes into the best varieties to grow indoors during the winter. Oh, and one other thing: the taste of winter-grown tomatoes is just one notch above supermarket quality. It’s nowhere near that delicious, juicy, aromatic tomato that grows in your garden in the summer.

Now that I have discouraged you from lugging insect-laden plants into your home, how about…

How to take tomato cuttings:

1. Using four-inch pots, fill with a dampened, commercial potting soil, preferably a seed starting mix. Your backyard soil is too iffy, because of possible pathogens and poor drainage.

2. Using your finger, a dibble or a round pencil, make a hole in the dampened soil, a few inches deep.

3. Take 5-7 inch-long cuttings from the tips of the tomato plants. Make the cut just below a side branch. Take off any flowers or juvenile fruit as well as the bottom leaves. That cutting only needs the two top leaves.

4. Drop the cuttings into the hole in the soil and gently press the soil around th