One of the best tools that you have as gardeners to help us figure out 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 USDA zone info for Robstown should be reviewed to figure out when it's a good idea to plant zucchini.

Planting Calendar for Zucchini

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

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

The earliest that you can plant zucchini in Robstown 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. Any later than that and your zucchini may not have a chance to really do well. 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 Robstown. In the coldest months of winter you can expect an average low temperature of 25°F.

Since the USDA zone info for Robstown may not be accurate from year to year the actual date of last frost will vary from year to year. Half of the time in Robstown it frosts late in the year after February 15 so be sure to be ready to protect your zucchini if you have a late frost.

USDA Zone Info for Robstown

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 Robstown

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