Finally getting our tomatoes in the ground here. We constructed a hoop house to keep those tomatoes nice & toasty. We cover our tomatoes through July- they go crazy over the heat. Inside these hoop houses, the temperature of the soil and air is a lot warmer and they love that. Tomatoes come from Latin & South America (which is a tad warmer than Seattle). Check the crop origin history here: http://homecooking.about.com/od/foodhistory/a/tomatohistory.htm.
Tomato cages really help support the weight of the plant as it grows and grows. The cage really helps hold those giant juicy tomatoes that have the power to capsize a whole plant.