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 Morro Bay should be used to figure out when it's possible to plant chinese chives.

Planting Calendar for Chinese chives

Frost tolerance for chinese chives:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Chinese chives tend to make it in mild cold which tells us that you can plant them just a bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant chinese chives in Morro Bay 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 chinese chives and expect a good harvest is probably October. Any later than that and your chinese chives may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your chinese chives indoors.

Last Frost Date

In Morro Bay the average date of last frost happens on February 15. You can expect an average low temperature of 25°F in the coldest months of winter.

Always keep in mind that USDA zone info for Morro Bay may not be accurate from year to year and the actual date of last frost will vary from year to year. Half of the time in Morro Bay it frosts late in the year after February 15 so make sure that you are prepared to protect your chinese chives if you have one of those late frosts.

USDA Zone Info for Morro Bay

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Morro Bay

You may be interested in your other planting guides for Morro Bay.