Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The best time to plant cilantro in Signal Hill can be estimated by looking at 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.

Since cilantro are one of those plants that can tolerate a tiny bit of cold weather you can plant them just a tiny bit earlier in the year than more sensitive plants.

The earliest that you can plant cilantro in Signal Hill 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. If you wait any later than that and your cilantro may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your cilantro indoors.

Last Frost Date

The average date of last frost is January 31 in Signal Hill. In the coldest months of winter you should expect an average low temperature of 35°F.

Since the USDA zone info for Signal Hill may not be accurate from year to year the actual date of last frost changes from year to year. Since half of the time in Signal Hill you get surprised by a frost after January 31 be ready to protect your cilantro if you have one of those late frosts.

USDA Zone Info for Signal Hill

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 Low	35°F
Highest Expected Low	40°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 Signal Hill

You may be interested in your other planting guides for Signal Hill.