Watermelon and Cantaloupe are very-tender vegetables that grow best in warm weather.
Plant seeds directly in the garden 2-4 weeks after the spring frost date.
To harvest melons sooner, start seeds indoors the week of the spring frost date, or purchase transplants. Transplants should be planted before they have more than 3 true leaves. Harden off and transplant into the garden 2-4 weeks after the spring frost date.
Melons require high temperatures and many hours of sunlight. They cannot be grown in the winter.
Soil and Fertilizer
Melons grow best in a rich soil; amend with lots of compost and fertilizer (chemical or organic) at planting. Adding fertilizer during the season will reduce production.
Fertilizer: Apply 16-16-8 at planting.
Harvest cantaloupe from 35-45 days after flowering, when netting gets course and rough and the background color goes from green to yellow. Harvest watermelon when the ground spot turns pale yellow and the skin goes from shiny to dull.
- Cantaloupe Reference Sheet (Utah Extension Service)
- Watermelon Reference Sheet (Utah Extension Service)