One of the first steps you take when you are getting a good idea your gardening schedule is find your 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.

A way of figuring out when it's possible to plant cosmos is to refer to the USDA zone info for Hurst.

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 are barely cold tolerant which means that you can get them planted just a bit earlier than other frost tender plants.

The earliest that you can plant cosmos in Hurst 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 cosmos and expect a good harvest is probably August. You probably don't want to wait any later than that or else your cosmos may not have a chance to fully mature. If you are starting your cosmos 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 March 15 in Hurst. You should expect an average low temperature of 10°F in the coldest months of winter.

Remember that USDA zone info for Hurst is not always accurate and the actual date of last frost can change quite a bit from year to year. Half of the time in Hurst you get surprised by a frost after March 15 so just be sure to be ready to cover your cosmos if you have a surprise late frost.

USDA Zone Info for Hurst

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 Hurst

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