Gardening is one of my favorite pastimes.    See if these tips work for you.  Remember my garden is here in southwestern Pa.  You may need to adapt theses tips for other locations.

• Set out tomato plants after all danger of frost has passed.
  That is when the temperatures are above 55 degrees at night.
• Tomatoes need at least 6 hours of sun per day
• Plant the transplant slightly deeper than it had been growing.  My special tip is  always set the plant on its side when you transplant.   Cover a lot of the stem. This way it can develop more roots.
• Sprinkle a little Epsom salts around the transplant.
  This is a wonderful organic fertilizer,i.e. magnesium.  Add this around pepper plants as well.
• Avoid the common mistake of overfeeding your tomatoes.
  Add too much nitrogen (N) and you’ll have a big, lush plant with very little fruit.
• Lightly spray the plants with fungicide shortly after planting and every 2 weeks after.
• There are two kinds of tomatoes.
• Determinate plants grow short and bushy, and all their fruit ripens at once. Try Roma, Amish Paste or Olpaka
• Indeterminate tomato plants are tall and vinelike.
  They need stakes. They have a longer, fruiting period.
  Some of the popular indeterminate tomatoes are Early Girl, Better Boy, Big Beef, and Lemon Boy
• Many experienced tomato growers pull off the first flowers,so the plant does not devote energy to forming fruit before its roots and foliage have filled out.
• To prune, or not to prune — pick off all the suckers–the sprouts that come up dead center between two main vines.
  Then you can plant more tomatoes in a smaller space. You will need to stake them. However tomatoes not pruned will do just fine left to sprawl.
• Healthy plants get tied to a stake.
  Plants laying on the ground are more susceptible to soilborne diseases.   I prefer to stake mine since I plant a small garden.
• Tomatoes require high amounts of magnesium.
  Pennsylvania tends to have calcium-rich soil, add lime early to the soil. It takes a few months to take effect.
• Tomatoes require generous drinks of water. 

Is a tomato a fruit or a vegetable? 

a tomato botanically is a fruit, but the U.S. Supreme Court ruled in 1893 that a tomato could be ruled a vegetable because it is eaten with a meal like other vegetables.

Happy Gardening!