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.

By using the USDA zone info for Rio Vista it's possible to figure out when to plant garden orache.

Planting Calendar for Garden Orache

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

You can plant garden orache just a bit earlier in the year because they do well in moderate cold.

The earliest that you can plant garden orache in Rio Vista 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 garden orache and expect a good harvest is probably October. You probably don't want to wait any later than that or else your garden orache may not have a chance to really do well. You can get started a little bit earlier by starting your garden orache indoors.

Last Frost Date

In Rio Vista the average date of last frost happens on February 15. It might get as low as 25°F during the coldest months of winter.

Keep in mind that the actual date of last frost is just an average because it is based on the USDA zone info for Rio Vista and it is different every year. Since half of the time in Rio Vista last frost occurs after February 15 be ready to cover your garden orache in the event of a surprise late frost.

USDA Zone Info for Rio Vista

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 Rio Vista

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