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.

The USDA zone info for South Pasadena can be used to determine when it's possible to plant peonies.

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.

Peonies are barely cold tolerant which means that you can start planting them slightly earlier than other plants that might not handle the cold.

The earliest that you can plant peonies in South Pasadena 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. Any later than that and your peonies may not have a chance to really do well. You can get started a few weeks earlier by starting your peonies indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on January 31 in South Pasadena. It might get as low as 30°F during the coldest months of winter.

Always keep in mind that USDA zone info for South Pasadena is just an average and the actual date of last frost will vary from year to year. Half of the time in South Pasadena last frost occurs after January 31 so make sure that you are ready to cover your peonies in the event of a late frost.

USDA Zone Info for South Pasadena

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 South Pasadena

You may be interested in your other planting guides for South Pasadena.