One of the first steps you take when you are estimating your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You should be able to figure out when it's possible to plant marigold by checking out the USDA zone info for Corsicana.

Planting Calendar for Marigold

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

It's probably not a good idea to plant marigold until after all chance of frost has passed because they are not cold tolerant.

The earliest that you can plant marigold in Corsicana 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 fully mature. Starting your marigold indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is March 15 in Corsicana. In the coldest months of winter you can expect an average low temperature of 10°F.

Since the USDA zone info for Corsicana is just an average the actual date of last frost is different every year. Since half of the time in Corsicana there is a last frost after March 15 be ready to protect your marigold in the event of one of those late frosts.

USDA Zone Info for Corsicana

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°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 15°F.

Plants to Grow in Corsicana

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