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 Montebello you can estimate when it's the best time to plant portulaca by looking at the USDA zone info.

Planting Calendar for Portulaca

Frost tolerance for portulaca:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

It's probably not a good idea to plant portulaca until after the last frost when the weather gets warmer because they do not do well in cold weather.

The earliest that you can plant portulaca in Montebello 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 portulaca and expect a good harvest is probably September. Any later than that and your portulaca may not have a chance to fully mature. You can get started a few weeks earlier by starting your portulaca indoors.

Last Frost Date

In Montebello the average date of last frost happens on January 31. It might get as low as 35°F during the coldest months of winter.

Keep in mind that USDA zone info for Montebello is an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Montebello last frost occurs after January 31 so make sure that you are ready to protect your portulaca in the event of one of those late frosts.

USDA Zone Info for Montebello

Here is the info for USDA Zone 10b.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	35°F
Highest Expected Low	40°F

This means that on a really cold year, the coldest it will get is 35°F. On most years you should be prepared to experience lows near 40°F.

Plants to Grow in Montebello

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