One of the best tools that you have as gardeners to help us figure out 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.

One way of determining when it's possible to plant iresene is to consult the USDA zone info for Mission.

Planting Calendar for Iresene

Frost tolerance for iresene:	Not tolerant of frost.
When to plant:	After the last frost has passed.

Since iresene are not cold tolerant it's necessary to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant iresene in Mission 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 iresene and expect a good harvest is probably September. You probably don't want to wait any later than that or else your iresene may not have a chance to really do well. Starting your iresene indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

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

Since the USDA zone info for Mission is not always accurate the actual date of last frost is different every year. Since half of the time in Mission you get surprised by a frost after February 15 be ready to protect your iresene in the event of one of those late frosts.

USDA Zone Info for Mission

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 Mission

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