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.

By reviewing the USDA zone info for Colorado City you should be able to figure out when it's a good idea to plant marigold.

Planting Calendar for Marigold

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

Since marigold are not cold tolerant you need to wait until after the last frost has passed before you can plant them.

The earliest that you can plant marigold in Colorado City 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 marigold and expect a good harvest is probably August. If you wait any later than that and your marigold may not have a chance to really do well. You can get started a few weeks earlier by starting your marigold indoors.

Last Frost Date

The average date of last frost is April 15 in Colorado City. It might get as low as 5°F during the coldest months of winter.

Remember that USDA zone info for Colorado City is an average and the actual date of last frost is different every year. Half of the time in Colorado City you get surprised by a frost after April 15 so be sure to be ready to cover your marigold if you have one of those late frosts.

USDA Zone Info for Colorado City

Here is the info for USDA Zone 7b.

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

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

Plants to Grow in Colorado City

You may be interested in your other planting guides for Colorado City.