Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

It's possible to estimate when it's the best time to plant lavender by reviewing the USDA zone info for Rio Vista.

Planting Calendar for Lavender

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

You can plant lavender a bit earlier in the year because they are one of those plants that can tolerate a little bit of cold weather.

The earliest that you can plant lavender 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 lavender and expect a good harvest is probably October. Any later than that and your lavender may not have a chance to really do well. Starting your lavender indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average all chance of frost has passed is on February 15 in Rio Vista. You can expect an average low temperature of 25°F in the coldest months of winter.

Since the USDA zone info for Rio Vista may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Since half of the time in Rio Vista last frost occurs after February 15 be ready to cover your lavender in the event of one of those late frosts.

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.