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

A way of making a decision about when you can plant chrysocephalum is to consult the USDA zone info for Dayton.

Planting Calendar for Chrysocephalum

Frost tolerance for chrysocephalum:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Since chrysocephalum are not cold tolerant you must wait until after the last frost before you can plant them.

The earliest that you can plant chrysocephalum in Dayton 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 chrysocephalum and expect a good harvest is probably September. If you wait any later than that and your chrysocephalum may not have a chance to fully mature. You can get started a little bit earlier by starting your chrysocephalum indoors.

Last Frost Date

On average all chance of frost has passed is on February 15 in Dayton. In the coldest months of winter you can expect an average low temperature of 20°F.

Since the USDA zone info for Dayton is not always accurate the actual date of last frost will vary from year to year. Since half of the time in Dayton there is a last frost after February 15 be ready to protect your chrysocephalum in the event of a surprise 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.