Before planting it is a good idea to find your USDA Zone info to estimate 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.

A common way of figuring out when it's possible to plant tagetes is to examine the USDA zone info for La Mesa.

Planting Calendar for Tagetes

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

Tagetes are not cold tolerant which means that it's important to wait until it warms up after all chance of frost has passed before you can plant them.

The earliest that you can plant tagetes in La Mesa 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. If you wait any later than that and 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

In La Mesa the average date of last frost happens on January 31. It might get as low as 30°F during the coldest months of winter.

Always keep in mind that USDA zone info for La Mesa is not always accurate and the actual date of last frost is different every year. Half of the time in La Mesa last frost occurs after January 31 so make sure that you are ready to cover your tagetes if you have one of those late frosts.

USDA Zone Info for La Mesa

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 La Mesa

You may be interested in your other planting guides for La Mesa.