One of the first steps you take when you are making a decision about your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

It's possible to determine when you can plant zucchini by looking at the USDA zone info for Merced.

Planting Calendar for Zucchini

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

Zucchini are not cold tolerant which tells us that it is important to wait until it warms up after the last frost has passed before you can plant them.

The earliest that you can plant zucchini in Merced 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 zucchini and expect a good harvest is probably September. You probably don't want to wait any later than that or else your zucchini may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your zucchini indoors.

Last Frost Date

On average all chance of frost has passed is on February 15 in Merced. In the coldest months of winter you should expect an average low temperature of 20°F.

Since the USDA zone info for Merced may not be accurate from year to year the actual date of last frost changes from year to year. Half of the time in Merced you get a frost after February 15 so always be ready to protect your zucchini if you have a late frost.

USDA Zone Info for Merced

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Merced

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