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 San Bruno you can estimate when it's the best time to plant parsley by checking out the USDA zone info.

Planting Calendar for Parsley

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

Parsley do well in moderate cold which tells us that you can plant them a little bit earlier than other frost tender plants.

The earliest that you can plant parsley in San Bruno 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 parsley and expect a good harvest is probably October. Any later than that and your parsley may not have a chance to fully mature. Starting your parsley indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average the last frost is on January 31 in San Bruno. It might get as low as 30°F during the coldest months of winter.

Since the USDA zone info for San Bruno is an average the actual date of last frost will vary from year to year. Half of the time in San Bruno there is a last frost after January 31 so be sure to be ready to protect your parsley if you have a late frost.

USDA Zone Info for San Bruno

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 Bruno

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