One of the best tools that you have as gardeners to help us determine 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 possible to estimate when to plant painted tongues by looking at the USDA zone info for Irvine.

Planting Calendar for Painted Tongues

Frost tolerance for painted tongues:	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 painted tongues until after all chance of frost has passed because they require warm weather.

The earliest that you can plant painted tongues in Irvine 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 painted tongues and expect a good harvest is probably September. You probably don't want to wait any later than that or else your painted tongues may not have a chance to fully mature. Starting your painted tongues 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 Irvine. You should expect an average low temperature of 30°F in the coldest months of winter.

Just be sure to remember that the actual date of last frost is just an average because it is based on the USDA zone info for Irvine and it changes from year to year. Half of the time in Irvine you get surprised by a frost after January 31 so always be ready to protect your painted tongues in the event of a late frost.

USDA Zone Info for Irvine

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Irvine

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