Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The earliest that you can plant four o' clock in Ojai can be estimated by checking out the USDA zone info.

Planting Calendar for Four O' Clock

Frost tolerance for four o' clock:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

Four O' Clock are not cold tolerant which means that it's important to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant four o' clock in Ojai 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 four o' clock and expect a good harvest is probably September. If you wait any later than that and your four o' clock may not have a chance to grow to maturity. Starting your four o' clock 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 Ojai. In the coldest months of winter you should expect an average low temperature of 25°F.

Since the USDA zone info for Ojai is an average the actual date of last frost is different every year. Half of the time in Ojai you get surprised by a frost after February 15 so make sure that you are ready to cover your four o' clock if you have a surprise late frost.

USDA Zone Info for Ojai

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 Ojai

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