One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The best time to plant zucchini in Patterson can be estimated by using the USDA zone info.

Planting Calendar for Zucchini

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

Since zucchini do not do well in cold weather you need to wait until after the last frost before you can plant them.

The earliest that you can plant zucchini in Patterson 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. If you wait any later than that and your zucchini may not have a chance to fully mature. You can get started a few weeks earlier by starting your zucchini indoors.

Last Frost Date

On average the last frost has passed is on February 15 in Patterson. It might get as low as 20°F during the coldest months of winter.

Keep in mind that the actual date of last frost is an average because it is based on the USDA zone info for Patterson and it will vary from year to year. Half of the time in Patterson last frost occurs after February 15 so make sure that you are prepared to protect your zucchini if you have a surprise late frost.

USDA Zone Info for Patterson

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 Patterson

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