One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A common way of figuring out when it's a good idea to plant chives is to use the USDA zone info for West Covina.

Planting Calendar for Chives

Frost tolerance for chives:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Since chives are one of those plants that can tolerate quite a bit of cold weather you can plant them much earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant chives in West Covina is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant chives and expect a good harvest is probably October. Any later than that and your chives may not have a chance to grow to maturity. If you are starting your chives 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 when the weather gets warmer is on January 31 in West Covina. You should expect an average low temperature of 30°F in the coldest months of winter.

Since the USDA zone info for West Covina is just an average the actual date of last frost can change quite a bit from year to year. Half of the time in West Covina you get a frost after January 31 so always be ready to cover your chives 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.