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

By referring to the USDA zone info for Sierra Vista it's a good idea to figure out when you can plant bellis.

Planting Calendar for Bellis

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

Bellis tend to make it in mild cold which tells us that you can plant them a bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant bellis in Sierra Vista 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 bellis and expect a good harvest is probably September. Any later than that and your bellis may not have a chance to grow to maturity. If you are starting your bellis indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

The average date of last frost is March 15 in Sierra Vista. In the coldest months of winter you should expect an average low temperature of 15°F.

Since the USDA zone info for Sierra Vista is an average the actual date of last frost changes from year to year. Since half of the time in Sierra Vista you get a frost after March 15 be ready to protect your bellis if you have a late frost.

USDA Zone Info for Sierra Vista

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°F

This means that on a really cold year, the coldest it will get is 15°F. On most years you should be prepared to experience lows near 20°F.

Plants to Grow in Sierra Vista

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