When to Plant Watermelon in West Lafayette, IN

One of the first steps you take when you are getting a good idea your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The earliest that you can plant watermelon in West Lafayette should be figured out by looking at the USDA zone info.


Planting Calendar for Watermelon

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

It's not a good idea to plant watermelon until after the last frost because they require warm 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 West Lafayette is April. However, you really should wait until May if you don't want to take any chances.

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

Last Frost Date

In West Lafayette the average date of last frost happens on April 15. You can expect an average low temperature of -15°F in the coldest months of winter.

It's important to remember that USDA zone info for West Lafayette is not always accurate and the actual date of last frost changes from year to year. Half of the time in West Lafayette it frosts late in the year after April 15 so make sure that you are prepared to cover your watermelon if you have a surprise late frost.

USDA Zone Info for West Lafayette

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-15°F
Highest Expected Low-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in West Lafayette

You may be interested in your other planting guides for West Lafayette.