Convert any numeric values to characters using the num2str function. Use disp to display the string. Use sprintf to create a string, and then display it with disp. Use fprintf to directly display the string without creating a variable.
Watermelons need a long growing season (at least 80 days) and warm ground for seeds to germinate and grow. Soil should be 70 degrees F or warmer at planting time. Sow seeds 1 inch deep and keep well watered until germination.
This summer, I planted my first watermelons. I live in zone 6 up in Pennsylvania, so to get a head start on the growing season, I started my watermelons inside in little peat pots. The seeds I planted did not want to grow, so by the time one actually sprouted, it was the beginning of June.