One of the best tools that you have as gardeners to help us figure out 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 figure out when it's the best time to plant lemon grass by using the USDA zone info for West Covina.

Planting Calendar for Lemon grass

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

Since lemon grass do ok in moderate cold you can plant them a bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant lemon grass in West Covina 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 lemon grass and expect a good harvest is probably September. You probably don't want to wait any later than that or else your lemon grass may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your lemon grass indoors.

Last Frost Date

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

Just be sure to remember 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 West Covina and it changes from year to year. Half of the time in West Covina there is a last frost after January 31 so make sure that you are ready to cover your lemon grass if you have one of those late frosts.

USDA Zone Info for West Covina

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 Low	30°F
Highest Expected Low	35°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 West Covina

You may be interested in your other planting guides for West Covina.