The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Rio Rancho you can estimate when it's a good idea to plant bok choi by looking at the USDA zone info.

Planting Calendar for Bok Choi

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

Since bok choi are moderately cold tolerant you can plant them a bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant bok choi in Rio Rancho 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 bok choi and expect a good harvest is probably September. You probably don't want to wait any later than that or else your bok choi may not have a chance to grow to maturity. Starting your bok choi indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost is on April 15 in Rio Rancho. You can expect an average low temperature of 5°F in the coldest months of winter.

Since the USDA zone info for Rio Rancho is just an average the actual date of last frost changes from year to year. Half of the time in Rio Rancho there is a last frost after April 15 so make sure that you are ready to protect your bok choi if you have a late frost.

USDA Zone Info for Rio Rancho

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	5°F
Highest Expected Low	10°F

This means that on a really cold year, the coldest it will get is 5°F. On most years you should be prepared to experience lows near 10°F.

Plants to Grow in Rio Rancho

You may be interested in your other planting guides for Rio Rancho.