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.

You can estimate when it's possible to plant four-o-clock flower in Fountain Valley by checking out the USDA zone info.

Planting Calendar for Four-o-clock flower

Frost tolerance for four-o-clock flower:	Not tolerant of frost.
When to plant:	After the last frost has passed.

It's a bad idea to plant four-o-clock flower until after the last frost when the weather gets warmer because they do not do well in cold weather.

The earliest that you can plant four-o-clock flower in Fountain Valley 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 four-o-clock flower and expect a good harvest is probably September. If you wait any later than that and your four-o-clock flower may not have a chance to really do well. Starting your four-o-clock flower indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on January 31 in Fountain Valley. In the coldest months of winter you should expect an average low temperature of 35°F.

Just be sure to remember that USDA zone info for Fountain Valley may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in Fountain Valley there is a last frost after January 31 so be sure to be ready to cover your four-o-clock flower in the event of one of those late frosts.

USDA Zone Info for Fountain Valley

Here is the info for USDA Zone 10b.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	35°F
Highest Expected Low	40°F

This means that on a really cold year, the coldest it will get is 35°F. On most years you should be prepared to experience lows near 40°F.

Plants to Grow in Fountain Valley

You may be interested in your other planting guides for Fountain Valley.