The Bottom of My Tomatoes are Turning Brown

I'm growing tomatoes in a Topsy Turvy planter. The fruit is about 1.5 inches across, and the bottom is discolored (beige). What is the cause, and what can I do to save the other (green) tomatoes?

Hardiness Zone: 9b

By Sandy Dupre from Beaumont, TX

Answers:

The Bottom of My Tomatoes are Turning Brown

Blossom end rot is very common in ANY tomatoes. The other people have given you some good treatments. There is a liquid chemical treatment to use before this starts, or you can try some 'home remedies' first. (07/09/2009)

By Frances Adams