When to Plant Watermelon in Fountain Hills, AZ

Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The first chance to plant watermelon in Fountain Hills can be estimated by checking out the USDA zone info.


Planting Calendar for Watermelon

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

You can not plant watermelon until after the last frost because they do not do well in cold weather.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant watermelon
Possibly ok, but a risky time to plant watermelon
Probably not a good time to plant watermelon

The earliest that you can plant watermelon in Fountain Hills is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant watermelon and expect a good harvest is probably September. You probably don't want to wait any later than that or else your watermelon may not have a chance to really do well. You can get started a couple of weeks earlier by starting your watermelon indoors.

Last Frost Date

On average the last frost is on February 15 in Fountain Hills. In the coldest months of winter you can expect an average low temperature of 25°F.

Remember that USDA zone info for Fountain Hills is not always accurate and the actual date of last frost changes from year to year. Half of the time in Fountain Hills you get a frost after February 15 so just be sure to be ready to cover your watermelon in the event of one of those late frosts.

USDA Zone Info for Fountain Hills

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)February 15
Average Date of First Frost (fall)December 15
Lowest Expected Low25°F
Highest Expected Low30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Fountain Hills

You may be interested in your other planting guides for Fountain Hills.