The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Campbell can be read to estimate when it's the best time to plant tagetes.

Planting Calendar for Tagetes

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

Tagetes require warm weather which means that you must wait until it warms up after the last frost when the weather gets warmer before you can plant them.

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

Last Frost Date

The average date of last frost is February 15 in Campbell. In the coldest months of winter you should expect an average low temperature of 25°F.

Keep in mind that USDA zone info for Campbell is an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Campbell it frosts late in the year after February 15 so make sure that you are prepared to cover your tagetes if you have a surprise late frost.

USDA Zone Info for Campbell

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 Campbell

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