The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The first opportunity to plant melons in Harlingen should be determined by referring to the USDA zone info.

Planting Calendar for Melons

Frost tolerance for melons:	Not tolerant of frost.
When to plant:	After the last frost has passed.

Melons require warm weather which tells us that you need to wait until it warms up after all chance of frost has passed before you can plant them.

The earliest that you can plant melons in Harlingen 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 melons and expect a good harvest is probably September. If you wait any later than that and your melons may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your melons indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Harlingen. In the coldest months of winter you can expect an average low temperature of 25°F.

Remember that USDA zone info for Harlingen is an average and the actual date of last frost is different every year. Half of the time in Harlingen last frost occurs after February 15 so make sure that you are prepared to protect your melons in the event of a late frost.

USDA Zone Info for Harlingen

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 Low	25°F
Highest Expected Low	30°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 Harlingen

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