One of the first steps you take when you are getting a good idea your gardening schedule is find your 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.

You should be able to figure out when to plant tagetes by reviewing the USDA zone info for San Bruno.

Planting Calendar for Tagetes

Frost tolerance for tagetes:	Not tolerant of frost.
When to plant:	After the last frost has passed.

Tagetes require warm weather which means that you really should wait until it warms up after the last frost has passed before you can plant them.

The earliest that you can plant tagetes in San Bruno 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 tagetes and expect a good harvest is probably September. You probably don't want to wait any later than that or else your tagetes may not have a chance to grow to maturity. You can get started a little bit earlier by starting your tagetes indoors.

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.

Remember that USDA zone info for San Bruno is just an average and the actual date of last frost is different every year. Since half of the time in San Bruno there is a last frost after January 31 be ready to protect your tagetes in the event of 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.