Before planting it is a good idea to find your USDA Zone info to figure out your garden 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 San Bruno should be read to figure out when it's possible to plant hamburg root parsley.

Planting Calendar for Hamburg root parsley

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

Hamburg root parsley tend to make it in moderate cold which means that you can plant them a bit earlier in the year than more sensitive plants.

The earliest that you can plant hamburg root 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 hamburg root parsley and expect a good harvest is probably October. Any later than that and your hamburg root parsley may not have a chance to really do well. Starting your hamburg root 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.

Always keep in mind that the actual date of last frost is an average because it is based on the USDA zone info for San Bruno and it will vary from year to year. Since half of the time in San Bruno you get surprised by a frost after January 31 be ready to cover your hamburg root parsley in the event of a surprise 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.