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

It's possible to determine when it's possible to plant chrysocephalum by referring to the USDA zone info for Yorktown.

Planting Calendar for Chrysocephalum

Frost tolerance for chrysocephalum:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

It's probably not a good idea to plant chrysocephalum until after all chance of frost has passed because they require warm weather.

The earliest that you can plant chrysocephalum in Yorktown is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant chrysocephalum and expect a good harvest is probably August. You probably don't want to wait any later than that or else your chrysocephalum may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your chrysocephalum indoors.

Last Frost Date

In Yorktown the average date of last frost happens on April 15. In the coldest months of winter you can expect an average low temperature of -10°F.

Since the USDA zone info for Yorktown is not always accurate the actual date of last frost changes from year to year. Half of the time in Yorktown you get a frost after April 15 so make sure that you are prepared to cover your chrysocephalum in the event of one of those late frosts.

USDA Zone Info for Yorktown

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°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 -5°F.

Plants to Grow in Yorktown

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