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.

In Port Isabel you can determine when it's a good idea to plant peonies by using the USDA zone info.

Planting Calendar for Peonies

Frost tolerance for peonies:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Since peonies are barely cold tolerant you can plant them a bit earlier in the year than other frost tender plants.

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

The last month that you can plant peonies and expect a good harvest is probably September. If you wait any later than that and your peonies may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your peonies indoors.

Last Frost Date

On average the last frost is on January 31 in Port Isabel. It might get as low as 30°F during the coldest months of winter.

Since the USDA zone info for Port Isabel is just an average the actual date of last frost will vary from year to year. Half of the time in Port Isabel last frost occurs after January 31 so be sure to be ready to cover your peonies if you have 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.