One of the first steps you take when you are making a decision about your gardening schedule is find your 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.

It's a good idea to figure out when it's a good idea to plant sweet peas by looking at the USDA zone info for Presidio.

Planting Calendar for Sweet Peas

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

Sweet Peas can survive in some cold which means that you can plant them a bit earlier in the year than more sensitive plants.

The earliest that you can plant sweet peas in Presidio 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 sweet peas and expect a good harvest is probably September. If you wait any later than that and your sweet peas may not have a chance to really do well. Starting your sweet peas indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Presidio the average date of last frost happens on February 15. It might get as low as 20°F during the coldest months of winter.

Since the USDA zone info for Presidio is not always accurate the actual date of last frost is different every year. Since half of the time in Presidio you get surprised by a frost after February 15 be ready to cover your sweet peas if you have one of those late frosts.

USDA Zone Info for Presidio

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Presidio

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