One of the best tools that you have as gardeners to help us determine 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.

One way of determining when to plant zucchini is to check out the USDA zone info for Hillsborough.

Planting Calendar for Zucchini

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

It's a bad idea to plant zucchini until after the last frost has passed because they require warm weather.

The earliest that you can plant zucchini in Hillsborough is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant zucchini and expect a good harvest is probably August. You probably don't want to wait any later than that or else your zucchini may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your zucchini indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Hillsborough. It might get as low as 5°F during the coldest months of winter.

Since the USDA zone info for Hillsborough is an average the actual date of last frost is different every year. Since half of the time in Hillsborough last frost occurs after April 15 be ready to cover your zucchini if you have one of those late frosts.

USDA Zone Info for Hillsborough

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	5°F
Highest Expected Low	10°F

This means that on a really cold year, the coldest it will get is 5°F. On most years you should be prepared to experience lows near 10°F.

Plants to Grow in Hillsborough

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