One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for San Luis Obispo should be reffered to in order to estimate when it's the best time to plant millet.

Planting Calendar for Millet

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

You can not plant millet until after the last frost because they are not cold tolerant.

The earliest that you can plant millet in San Luis Obispo 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 really do well. Starting your millet indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

In San Luis Obispo the average date of last frost happens on February 15. It might get as low as 25°F during the coldest months of winter.

Always keep in mind that USDA zone info for San Luis Obispo may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in San Luis Obispo it frosts late in the year after February 15 so make sure that you are ready to protect your millet if you have a surprise late frost.

USDA Zone Info for San Luis Obispo

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 San Luis Obispo

You may be interested in your other planting guides for San Luis Obispo.