With the following steps, you will be able to make your tomatoes ripen in a short time. However, this may take you a lot of time in choosing and preparing for the ripening. As you will have to leave the tomatoes on the vine, you should move the whole vine.

For the first step, you should move the tomato plant with a garden shovel. There may be some soil stick to the root of the tomato plant; you may use some tools like a stick to get the extra soil away. Here is an easier way for you to ripen the green tomatoes. For the second step, you should take the plant with all of the tomatoes to a room with temperature above zero and then take off all of the ripe tomatoes.

Firstly, you may dig a big hole for the root of the tomato plant and then pull out it with great care. More often, some of the green tomatoes will not be able to ripen before the first frost. As the ripe ones will not need to be ripened.

And you may pick them off the vine and ripen them in a box.