The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can determine when you can plant arctotis in San Mateo by checking out the USDA zone info.

Planting Calendar for Arctotis

Frost tolerance for arctotis:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Arctotis are one of those plants that can tolerate a little bit of cold weather which tells us that you can plant them earlier than other plants that might not handle the cold.

The earliest that you can plant arctotis in San Mateo is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant arctotis and expect a good harvest is probably October. If you wait any later than that and your arctotis may not have a chance to grow to maturity. Starting your arctotis indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average all chance of frost has passed is on January 31 in San Mateo. It might get as low as 30°F during the coldest months of winter.

Since the USDA zone info for San Mateo is not always accurate the actual date of last frost changes from year to year. Half of the time in San Mateo you get surprised by a frost after January 31 so be sure to be ready to cover your arctotis in the event of one of those late frosts.

USDA Zone Info for San Mateo

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 San Mateo

You may be interested in your other planting guides for San Mateo.