One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Winter Garden you can figure out when it's possible to plant cosmos by reviewing 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.

Since cosmos are barely cold tolerant you can plant them slightly earlier in the year than other frost tender plants.

The earliest that you can plant cosmos in Winter Garden 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. You probably don't want to wait any later than that or else your cosmos may not have a chance to fully mature. Starting your cosmos indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is February 15 in Winter Garden. It might get as low as 25°F during the coldest months of winter.

Always keep in mind that USDA zone info for Winter Garden may not be accurate from year to year and the actual date of last frost is different every year. Since half of the time in Winter Garden you get surprised by a frost after February 15 be ready to protect your cosmos in the event of a late frost.

USDA Zone Info for Winter Garden

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 Garden

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