When to Plant Pearl onions in Santa Fe Springs, CA

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.

The first opportunity to plant pearl onions in Santa Fe Springs should be determined by referring to the USDA zone info.


Planting Calendar for Pearl onions

Frost tolerance for pearl onions: Tolerant of a very small amount of frost.
When to plant: Up to 3 weeks before last frost.

Since pearl onions are barely cold tolerant you can plant them just a tiny bit earlier in the year than more sensitive plants.

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

The earliest that you can plant pearl onions in Santa Fe Springs 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 pearl onions and expect a good harvest is probably September. You probably don't want to wait any later than that or else your pearl onions may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your pearl onions indoors.

Last Frost Date

The average date of last frost is January 31 in Santa Fe Springs. You should expect an average low temperature of 35°F in the coldest months of winter.

Keep in mind that USDA zone info for Santa Fe Springs is not always accurate and the actual date of last frost changes from year to year. Half of the time in Santa Fe Springs you get a frost after January 31 so just be sure to be ready to protect your pearl onions if you have a late frost.

USDA Zone Info for Santa Fe Springs

Here is the info for USDA Zone 10b.

Average Date of Last Frost (spring)January 31
Average Date of First Frost (fall)December 15
Lowest Expected Low35°F
Highest Expected Low40°F

This means that on a really cold year, the coldest it will get is 35°F. On most years you should be prepared to experience lows near 40°F.

Plants to Grow in Santa Fe Springs

You may be interested in your other planting guides for Santa Fe Springs.