When to Plant Melons in Vacaville, CA

The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You can estimate when it's possible to plant melons in Vacaville by checking out 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.

It's probably not a good idea to plant melons until after the last frost has passed because they are not cold tolerant.

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

The earliest that you can plant melons in Vacaville 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. 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

In Vacaville the average date of last frost happens on February 15. In the coldest months of winter you should expect an average low temperature of 25°F.

Keep in mind that USDA zone info for Vacaville may not be accurate from year to year and the actual date of last frost is different every year. Half of the time in Vacaville you get a frost after February 15 so always be ready to cover your melons in the event of one of those late frosts.

USDA Zone Info for Vacaville

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 Vacaville

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