The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The first opportunity to plant strawflowers in Dayton can be figured out by looking at the USDA zone info.

Planting Calendar for Strawflowers

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

Since strawflowers are barely cold tolerant you can plant them a bit earlier in the year than more sensitive plants.

The earliest that you can plant strawflowers in Dayton 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 strawflowers and expect a good harvest is probably September. Any later than that and your strawflowers may not have a chance to fully mature. You can get started a few weeks earlier by starting your strawflowers indoors.

Last Frost Date

In Dayton the average date of last frost happens on February 15. It might get as low as 20°F during the coldest months of winter.

Since the USDA zone info for Dayton is just an average the actual date of last frost is different every year. Since half of the time in Dayton last frost occurs after February 15 be ready to protect your strawflowers if you have a late frost.

USDA Zone Info for Dayton

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 Dayton

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