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.

By using the USDA zone info for Covina it's possible to estimate when it's possible to plant lemon grass.

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.

You can plant lemon grass a bit earlier in the year because they are barely cold tolerant.

The earliest that you can plant lemon grass in 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 grow to maturity. You can get started a little bit earlier by starting your lemon grass indoors.

Last Frost Date

On average the last frost has passed is on January 31 in Covina. In the coldest months of winter you can expect an average low temperature of 30°F.

Since the USDA zone info for Covina is an average the actual date of last frost can change quite a bit from year to year. Half of the time in Covina it frosts late in the year after January 31 so make sure that you are prepared to cover your lemon grass in the event of a late frost.

USDA Zone Info for 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 Covina

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