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.

By looking at the USDA zone info for San Jose it's possible to estimate when it's a good idea to plant cantaloupes.

Planting Calendar for Cantaloupes

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

Since cantaloupes require warm weather it is important to wait until after the last frost has passed before you can plant them.

The earliest that you can plant cantaloupes in San Jose 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 cantaloupes and expect a good harvest is probably September. If you wait any later than that and your cantaloupes may not have a chance to really do well. Starting your cantaloupes indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost has passed is on February 15 in San Jose. It might get as low as 25°F during the coldest months of winter.

Keep in mind that the actual date of last frost is not always accurate because it is based on the USDA zone info for San Jose and it changes from year to year. Since half of the time in San Jose you get surprised by a frost after February 15 be ready to protect your cantaloupes in the event of a late frost.

USDA Zone Info for San Jose

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 San Jose

You may be interested in your other planting guides for San Jose.