When to Plant Iberis in Zone 11a

One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You should be able to estimate when it's a good idea to plant iberis by looking at the USDA zone info for Zone 11a.


Planting Calendar for Iberis

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

Since iberis do well in moderate cold you can plant them a little earlier in the year than plants that are more sensitive to the cold.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant iberis
Possibly ok, but a risky time to plant iberis
Probably not a good time to plant iberis

The earliest that you can plant iberis in Zone 11a 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 November. If you wait any later than that and your iberis may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your iberis indoors.

Last Frost Date

In Zone 11a it never frosts. It might get as low as 40°F during the coldest months of winter.

Keep in mind that the actual date of last frost is not always accurate because it is based on the USDA zone info for Zone 11a and it changes from year to year. Since it never frosts in Zone 11a you do not have to be ready to cover your iberis if you have one of those late frosts.

USDA Zone Info for Zone 11a

Here is the info for USDA Zone 11a.

Average Date of Last Frost (spring)Never
Average Date of First Frost (fall)Never
Lowest Expected Low40°F
Highest Expected Low45°F

This means that on a really cold year, the coldest it will get is 40°F. On most years you should be prepared to experience lows near 45°F.

Plants to Grow in Zone 11a

You may be interested in your other planting guides for Zone 11a.