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

A way of figuring out when it's the best time to plant millet is to use the USDA zone info for Broomfield.

Planting Calendar for Millet

Frost tolerance for millet:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Since millet do not do well in cold weather you have to wait until after the last frost before you can plant them.

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

The last month that you can plant millet and expect a good harvest is probably August. You probably don't want to wait any later than that or else your millet may not have a chance to fully mature. If you are starting your millet indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Broomfield. You should expect an average low temperature of -10°F in the coldest months of winter.

Since the USDA zone info for Broomfield is just an average the actual date of last frost is different every year. Half of the time in Broomfield it frosts late in the year after April 15 so just be sure to be ready to cover your millet in the event of a late frost.

USDA Zone Info for Broomfield

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Broomfield

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