Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The best time to plant watermelon in Marathon should be figured out by referring to the USDA zone info.

Planting Calendar for Watermelon

Frost tolerance for watermelon:	Not tolerant of frost.
When to plant:	After the last frost.

Since watermelon require warm weather it is necessary to wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant watermelon in Marathon is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant watermelon and expect a good harvest is probably November. If you wait any later than that and your watermelon may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your watermelon indoors.

Last Frost Date

In Marathon it never frosts. It might get as low as 45°F during the coldest months of winter.

It's important to remember that the actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Marathon and it will vary from year to year. Since it never frosts in Marathon you do not have to be ready to cover your watermelon if you have one of those late frosts.

USDA Zone Info for Marathon

Here is the info for USDA Zone 11b.

Average Date of Last Frost (spring)	Never
Average Date of First Frost (fall)	Never
Lowest Expected Low	45°F
Highest Expected Low	50°F

This means that on a really cold year, the coldest it will get is 45°F. On most years you should be prepared to experience lows near 50°F.

Plants to Grow in Marathon

You may be interested in your other planting guides for Marathon.