The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

It's a good idea to estimate when it's possible to plant vinca vine by looking at the USDA zone info for Port Isabel.

Planting Calendar for Vinca Vine

Frost tolerance for vinca vine:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

You can plant vinca vine a bit earlier in the year because they are one of those plants that can tolerate a little bit of cold weather.

The earliest that you can plant vinca vine 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 vinca vine and expect a good harvest is probably October. Any later than that and your vinca vine may not have a chance to fully mature. If you are starting your vinca vine indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average all chance of frost has passed is on January 31 in Port Isabel. You should expect an average low temperature of 30°F in the coldest months of winter.

It's important to remember that USDA zone info for Port Isabel may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in Port Isabel it frosts late in the year after January 31 so just be sure to be ready to cover your vinca vine in the event of a 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.