When to Plant Cilantro in Glendora, CA

Before planting it is a good idea to find your USDA Zone info to determine 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 estimate when it's possible to plant cilantro in Glendora by referring to the USDA zone info.


Planting Calendar for Cilantro

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

Cilantro are barely cold tolerant which means that you can get them planted just a bit earlier than other plants that might not handle the cold.

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

The earliest that you can plant cilantro in Glendora 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 cilantro and expect a good harvest is probably September. You probably don't want to wait any later than that or else your cilantro may not have a chance to really do well. You can get started a few weeks earlier by starting your cilantro indoors.

Last Frost Date

The average date of last frost is January 31 in Glendora. You should expect an average low temperature of 30°F in the coldest months of winter.

Always keep in mind that the actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Glendora and it can change quite a bit from year to year. Since half of the time in Glendora you get a frost after January 31 be ready to protect your cilantro if you have a late frost.

USDA Zone Info for Glendora

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 Glendora

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