Before planting it is a good idea to find your USDA Zone info to figure out your garden 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 Tucson can be reviewed to determine when to plant millet.

Planting Calendar for Millet

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

Since millet require warm weather it is necessary to wait until after the last frost before you can plant them.

The earliest that you can plant millet in Tucson 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. If you wait any later than that and your millet may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your millet indoors.

Last Frost Date

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

Since the USDA zone info for Tucson is an average the actual date of last frost can change quite a bit from year to year. Since half of the time in Tucson you get surprised by a frost after February 15 be ready to cover your millet in the event of a surprise late frost.

USDA Zone Info for Tucson

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 Tucson

You may be interested in your other planting guides for Tucson.