One of the first steps you take when you are making a decision about your gardening schedule is find your 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 Mateo you can determine when it's possible to plant nemesia by checking out the USDA zone info.

Planting Calendar for Nemesia

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

It's a bad idea to plant nemesia until after the last frost because they do not do well in cold weather.

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

Last Frost Date

In San Mateo the average date of last frost happens on January 31. 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 is different every year. Half of the time in San Mateo it frosts late in the year after January 31 so make sure that you are ready to cover your nemesia if you have a late frost.

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.