The Q&A Archives: Tomato Planting

Question: I am told that tomatoes will not set fruit if it is above 90 degrees. Is this true ?

Answer: Research shows that most tomato varieties don't set fruit well when nighttime temperatures are above 70 degrees or daytime temperatures are above 90 degrees. Tomatoes seem to be most sensitive to temperature extremes at night. Temperatures between 59 degrees and 68 degrees provide the best conditions. Above or below these temperatures, fruit set is reduced or nonexistent. This is because the pollen is rendered sterile in extreme heat. There are some heat tolerant tomatoes, if you live in an area of extreme temperatures. If so, try growing Equinox, Heatwave, Solar Set, Sunleaper or Sunmaster.

« Click to go to the homepage

» Ask a question of your own

Q&A Library Searching Tips

  • When singular and plural spellings differ, as in peony and peonies, try both.
  • Search terms are not case sensitive.

Today's site banner is by Char and is called "'Diamond Head' Sunrise"