I am trying to grow tomatos in the south NM desert. I bought 4 50gal. plastic drums and had them cut in 2 for 8 lg containers. I am using a mix of 1/3 desert dirt ( DIY adobe used to be the preferred building material here) mixed with saw dust and 1/3 store bought top soil mixed together. The final top third is Miracle Grow Garden Soil. I put in a sprinkle of Osmocote too. I am mulching with straw. I am placing the containers on the east and north east side of the house where they will get afternoon shade and protection from our west winds. Our humidity level averages around 10%. We get 7 to 9 inches of rain per year so of course I will be watering a lot.
I'm hopeing all of the tomato experts on this blog can tell me if there is anything else I need to do to be successful.