What variety is your plant? If you have other tomatoes, are they dropping their blossoms as well? Is the plant in-ground or in a container? When did you plant it? And most importantly, what has your weather been lately? Tomatoes, peppers and beans are especially picky about the air temps when it comes time to set fruit. If the night temps fall below 55 or rise above 75 or if the day temps are above 90, the pollen becomes tacky and non-viable. Pollination cannot occur. If the bloom isn't pollinated, the bloom dies and falls off. From the FAQ, "Why are the blooms on my tomato plant dying and falling off?" http://faq.gardenweb.com/faq/lists/tomato/2000083030027695.html

"Blossom-Drop" is a condition suffered by tomatoes, peppers, snap beans, and some other fruiting vegetables where the plant blooms but fails to set fruit, the blooms die and fall off. It may be caused by the use of excess nitrogen fertilizers or dry windy conditions, but the most common cause is temperature extremes. Tomatoes, peppers and beans are especially picky about the air temps when it comes time to set fruit. If the night temps fall below 55 or rise above 75 or if the day temps are above 90, the pollen becomes tacky and non-viable. Pollination cannot occur. If the bloom isn't pollinated, the bloom dies and falls off. Control: Water the plants deeply once a week, mulch heavily to maintain constant soil moisture levels, establish windbreaks as needed, avoid using excessive amounts of nitrogen fertilizers, and wait for temperatures to moderate and stabilize. Earlier timed planting can help attain fruit set prior to the on-set of high temps, and the use of protection can compensate for cool nights. Some recommend attempting hand-pollination with an artist brush or a gentle shaking of the plant/cage/support prior to the hottest part of the day will also help. Fruit set will resume when temperatures moderate. Hormone sprays, such as "Blossom Set", may prevent some blossom drop due to LOW temperatures. However, the resulting fruit are often misshapen. But studies prove that hormone sprays do not prevent blossom drop due to HIGH temperatures.

I live in Zone 7, north of Abilene Texas. I agree that three is not enough. I was just trying out the three varieties that Walmart had to see what they would. The truth is that I started all my plants in February in anticipation of getting my Gh covered in March, but then my daughter had difficulty in childbirth and my wife and I had to go and care for our new grandson for two month while our daughter recovered. I left my older son at home to care of the new plants but he works as a paramedic and pulls shifts from 24 to 72 hours and comes home dead on his feet. Needless to say, the starter plants were not cared for and died. By the time I got home it was April and I just bought what ever Walmart had growing and stuck it in the ground just to have something growing until I could get the cover on the Gh. So, long story short, I am not where I wanted be at this time and am just trying to make do until better weather. The only planting space I have is the GH, and I want more then just tomatoes, so I have to proportion my space. I have never been able to grow vegetables in the open here because of the harsh and extreme weather and extremely limited water resources. This is a learning year for me. I appreciate all advice and assure you that it is all going into my head as I devolpe my planting plan. My hope its to put this GH unto full-time production at some point (for personal and family food). I know I have a lot of learning to do before then.

Yeah that sounds like a good idea Sheila...I never thought of something like that? How do those work exactly? And Seil I didn't plant in cardboard as in 'packaging the Rose came in' I mean I had moving style boxes I broke down and then I wet them down really good to put under mulch along the slope to deter weeds. I made sure to leave about 5" or so around each plant bare with a little mulch. I did however leave the soil on it when I planted, I didn't try to make bareroot? You think that could've caused it? I just want to know how to save these ...also it rained last night...not sure how hard because it ended at least an hour or two before I woke up so when I stuck finger in soil down so deep that I had no finger left! It felt pretty moist all the way down...but idk how much rain feel so idk if that could happen from the rain we just had overnight? And today has been overcast with next to no sun all day..so sun wasn't out to dry it out.