The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The first chance to plant tagetes in Rancho Cucamonga can be figured out by looking at the USDA zone info.

Planting Calendar for Tagetes

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

You can not plant tagetes until after the last frost because they require warm weather.

The earliest that you can plant tagetes in Rancho Cucamonga 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. If you are starting your tagetes indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

On average the last frost is on February 15 in Rancho Cucamonga. In the coldest months of winter you can expect an average low temperature of 25°F.

Just be sure to remember that USDA zone info for Rancho Cucamonga is not always accurate and the actual date of last frost will vary from year to year. Half of the time in Rancho Cucamonga last frost occurs after February 15 so always be ready to protect your tagetes in the event of a late frost.

USDA Zone Info for Rancho Cucamonga

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 Rancho Cucamonga

You may be interested in your other planting guides for Rancho Cucamonga.