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.

The USDA zone info for Shafter should be reffered to in order to determine when it's the best time to plant iberis.

Planting Calendar for Iberis

Frost tolerance for iberis:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Iberis tend to make it in mild cold which tells us that you can plant them a bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant iberis in Shafter is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant iberis and expect a good harvest is probably October. Any later than that and your iberis may not have a chance to really do well. Starting your iberis indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is February 15 in Shafter. It might get as low as 20°F during the coldest months of winter.

Keep in mind that USDA zone info for Shafter is just an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Shafter there is a last frost after February 15 be ready to cover your iberis if you have one of those late frosts.

USDA Zone Info for Shafter

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Shafter

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