One of the best tools that you have as gardeners to help us estimate your gardening schedule is the 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.

By using the USDA zone info for Port Isabel you should be able to estimate when you can plant gayfeather.

Planting Calendar for Gayfeather

Frost tolerance for gayfeather:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Gayfeather can survive in pretty solid cold which means that you can plant them quite a bit earlier in the year than more sensitive plants.

The earliest that you can plant gayfeather in Port Isabel is January. However, you really should wait until February if you don't want to take any chances.

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

Last Frost Date

In Port Isabel the average date of last frost happens on January 31. In the coldest months of winter you should expect an average low temperature of 30°F.

Just be sure to remember that USDA zone info for Port Isabel may not be accurate from year to year and the actual date of last frost will vary from year to year. Since half of the time in Port Isabel last frost occurs after January 31 be ready to cover your gayfeather in the event of a surprise late frost.

USDA Zone Info for Port Isabel

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Port Isabel

You may be interested in your other planting guides for Port Isabel.