When to Plant Arabis in Alhambra, CA

Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You can figure out when to plant arabis in Alhambra by referring to the USDA zone info.


Planting Calendar for Arabis

Frost tolerance for arabis: Very tolerant of frost.
When to plant: Up to 7 weeks before last frost.

Arabis do well in a bit of cold which means that you can plant them much earlier in the year than more sensitive plants.

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

The earliest that you can plant arabis in Alhambra 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 arabis and expect a good harvest is probably October. If you wait any later than that and your arabis may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your arabis indoors.

Last Frost Date

In Alhambra the average date of last frost happens on January 31. It might get as low as 30°F during the coldest months of winter.

Keep in mind that the actual date of last frost is just an average because it is based on the USDA zone info for Alhambra and it changes from year to year. Since half of the time in Alhambra you get a frost after January 31 be ready to protect your arabis if you have one of those late frosts.

USDA Zone Info for Alhambra

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 Low30°F
Highest Expected Low35°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 Alhambra

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