One of the best tools that you have as gardeners to help us estimate your gardening schedule is the 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.

It's a good idea to estimate when it's the best time to plant tagetes by checking out the USDA zone info for Vacaville.

Planting Calendar for Tagetes

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

It's probably not a good idea to plant tagetes until after the last frost has passed because they do not do well in cold weather.

The earliest that you can plant tagetes in Vacaville is March. However, you really should wait until April 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. Any later than that and your tagetes may not have a chance to really do well. You can get started a few weeks earlier by starting your tagetes indoors.

Last Frost Date

On average the last frost has passed is on February 15 in Vacaville. You should expect an average low temperature of 25°F in the coldest months of winter.

Since the USDA zone info for Vacaville is just an average the actual date of last frost is different every year. Half of the time in Vacaville you get a frost after February 15 so be sure to be ready to protect your tagetes in the event of a surprise late frost.

USDA Zone Info for Vacaville

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Vacaville

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