Here's another thought If you have just a few tomatoes that you are growing in containers. At transplant time. Take an eggshell, dry and grind very fine, add to soil 1 per pot Saves finding a place to store a bag of lime. OR Take a couple tums with calcium, grind up very fine, and add to soil. Lime there are several types, One type is a calcium based another is magnisium based. Typicaly the calcium based is used on acidic soils and the magnisium base is used on alkaline soils. Byron