The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for West Covina should be looked at to estimate when it's a good idea to plant stevia.

Planting Calendar for Stevia

Frost tolerance for stevia:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

Since stevia require warm weather you must wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant stevia 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 stevia and expect a good harvest is probably September. Any later than that and your stevia may not have a chance to fully mature. If you are starting your stevia indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

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

Just be sure to remember that USDA zone info for West Covina is just an average and the actual date of last frost changes from year to year. Half of the time in West Covina last frost occurs after January 31 so make sure that you are prepared to protect your stevia in the event of a late frost.

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.