Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A common way of figuring out when it's the best time to plant cosmos is to consult the USDA zone info for Winter Springs.

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.

Since cosmos do ok in moderate cold you can plant them slightly earlier in the year than other plants that might not handle the cold.

The earliest that you can plant cosmos in Winter Springs 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 fully mature. You can get started a little bit earlier by starting your cosmos indoors.

Last Frost Date

On average the last frost is on February 15 in Winter Springs. You can expect an average low temperature of 25°F in the coldest months of winter.

Since the USDA zone info for Winter Springs may not be accurate from year to year the actual date of last frost will vary from year to year. Since half of the time in Winter Springs it frosts late in the year after February 15 be ready to cover your cosmos in the event of a late frost.

USDA Zone Info for Winter Springs

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Winter Springs

You may be interested in your other planting guides for Winter Springs.