One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You can estimate when it's the best time to plant bellis in Rio Vista by looking at the USDA zone info.

Planting Calendar for Bellis

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

You can plant bellis just a bit earlier in the year because they are moderately cold tolerant.

The earliest that you can plant bellis 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 bellis and expect a good harvest is probably October. If you wait any later than that and your bellis may not have a chance to grow to maturity. Starting your bellis indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is February 15 in Rio Vista. In the coldest months of winter you can expect an average low temperature of 25°F.

Always keep in mind that USDA zone info for Rio Vista is an average and the actual date of last frost is different every year. Half of the time in Rio Vista you get surprised by a frost after February 15 so just be sure to be ready to protect your bellis 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.