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 checking out the USDA zone info for Pasadena you will be able to estimate when it's a good idea to plant purslane.

Planting Calendar for Purslane

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

Since purslane do ok in moderate cold you can plant them a bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant purslane in 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 purslane and expect a good harvest is probably September. Any later than that and your purslane may not have a chance to fully mature. Starting your purslane indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is February 15 in Pasadena. You should expect an average low temperature of 20°F in the coldest months of winter.

Keep in mind that USDA zone info for Pasadena may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Since half of the time in Pasadena there is a last frost after February 15 be ready to protect your purslane in the event of one of those late frosts.

USDA Zone Info for Pasadena

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 Pasadena

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