One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. 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 Lake Jackson can be looked at to figure out when 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 do not do well in cold weather you must wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant marigold in Lake Jackson 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 marigold and expect a good harvest is probably September. You probably don't want to wait any later than that or else your marigold may not have a chance to grow to maturity. You can get started a little bit earlier by starting your marigold indoors.

Last Frost Date

On average the last frost is on February 15 in Lake Jackson. It might get as low as 20°F during the coldest months of winter.

Since the USDA zone info for Lake Jackson is not always accurate the actual date of last frost is different every year. Half of the time in Lake Jackson there is a last frost after February 15 so make sure that you are prepared to protect your marigold if you have a late frost.

USDA Zone Info for Lake Jackson

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Lake Jackson

You may be interested in your other planting guides for Lake Jackson.