One of the best tools that you have as gardeners to help us determine 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.

By using the USDA zone info for South Houston it's a good idea to estimate when it's the best time 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.

Since chinese chives do well in moderate cold you can plant them a little bit earlier in the year than more sensitive plants.

The earliest that you can plant chinese chives in South Houston 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. You probably don't want to wait any later than that or else your chinese chives may not have a chance to grow to maturity. Starting your chinese chives indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is February 15 in South Houston. You can expect an average low temperature of 20°F in the coldest months of winter.

Since the USDA zone info for South Houston is just an average the actual date of last frost can change quite a bit from year to year. Half of the time in South Houston last frost occurs after February 15 so be sure to be ready to cover your chinese chives if you have a late frost.

USDA Zone Info for South Houston

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in South Houston

You may be interested in your other planting guides for South Houston.