The USDA Zone info is a great tool for gardeners to help us determine 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.

The USDA zone info for Santa Rosa should be reviewed to figure out when it's a good idea to plant millet.

Planting Calendar for Millet

Frost tolerance for millet:	Not tolerant of frost.
When to plant:	After the last frost has passed.

Millet do not do well in cold weather which tells us that you really should wait until it warms up after the last frost before you can plant them.

The earliest that you can plant millet in Santa Rosa is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant millet and expect a good harvest is probably September. Any later than that and your millet may not have a chance to really do well. You can get started a little bit earlier by starting your millet indoors.

Last Frost Date

On average all chance of frost has passed is on February 15 in Santa Rosa. In the coldest months of winter you can expect an average low temperature of 25°F.

Remember that the actual date of last frost is not always accurate because it is based on the USDA zone info for Santa Rosa and it changes from year to year. Since half of the time in Santa Rosa it frosts late in the year after February 15 be ready to cover your millet if you have a late frost.

USDA Zone Info for Santa Rosa

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 Santa Rosa

You may be interested in your other planting guides for Santa Rosa.