One of the first steps you take when you are determining 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.

In Corona you can figure out when to plant melons by using the USDA zone info.

Planting Calendar for Melons

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

Since melons are not cold tolerant you must wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant melons in Corona 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. If you are starting your melons indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is February 15 in Corona. You can expect an average low temperature of 25°F in the coldest months of winter.

Keep in mind that USDA zone info for Corona may not be accurate from year to year and the actual date of last frost changes from year to year. Since half of the time in Corona you get a frost after February 15 be ready to cover your melons if you have one of those late frosts.

USDA Zone Info for Corona

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 Corona

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