The USDA Zone info is a great tool for gardeners to help us estimate 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.

The first opportunity to plant cosmos in Silsbee should be estimated by checking out the USDA zone info.

Planting Calendar for Cosmos

Frost tolerance for cosmos:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Cosmos do ok in moderate cold which means that you can start planting them slightly earlier than more sensitive plants.

The earliest that you can plant cosmos in Silsbee is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant cosmos and expect a good harvest is probably September. If you wait any later than that and your cosmos may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your cosmos indoors.

Last Frost Date

The average date of last frost is February 15 in Silsbee. In the coldest months of winter you can expect an average low temperature of 20°F.

Since the USDA zone info for Silsbee is not always accurate the actual date of last frost will vary from year to year. Half of the time in Silsbee last frost occurs after February 15 so be sure to be ready to protect your cosmos in the event of one of those late frosts.

USDA Zone Info for Silsbee

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 Silsbee

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