I'm having surgery and my surgeon is a DO. What is the difference between a DO and an MD?. A physician who is a DO (Doctor of Osteopathic Medicine) is held to the same standards as an MD. They both attend four years of medical school and complete their training at the same residency programs.
1 Watermelon seeds need to germinate at a temperature over 70 degrees. 2  If you live in a cool climate, it might make sense to start them indoors a few weeks before the last frost, so you'll be able get the seedlings underway at the beginning of the growing season.
1 If you live in warmer climes, you can direct sow seeds outdoors, but wait until the soil temperature warms to at least 70 degrees to avoid poor germination.  Watermelon vines are very tender and should not be transplanted until all danger of frost has passed.