One of the first steps you take when you are estimating 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.

In Hesperia you can figure out when it's a good idea to plant tagetes by using the USDA zone info.

Planting Calendar for Tagetes

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

It's probably a bad idea to plant tagetes until after the last frost has passed because they require warm weather.

The earliest that you can plant tagetes in Hesperia is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant tagetes and expect a good harvest is probably August. Any later than that and your tagetes may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your tagetes indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on March 15 in Hesperia. It might get as low as 15°F during the coldest months of winter.

Keep in mind that USDA zone info for Hesperia is just an average and the actual date of last frost is different every year. Half of the time in Hesperia you get surprised by a frost after March 15 so make sure that you are ready to cover your tagetes if you have a surprise late frost.

USDA Zone Info for Hesperia

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°F

This means that on a really cold year, the coldest it will get is 15°F. On most years you should be prepared to experience lows near 20°F.

Plants to Grow in Hesperia

You may be interested in your other planting guides for Hesperia.