One of the best tools that you have as gardeners to help us figure out 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 Louisville you can figure out when it's possible to plant chrysocephalum by referring to the USDA zone info.

Planting Calendar for Chrysocephalum

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

Since chrysocephalum require warm weather you really should wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant chrysocephalum in Louisville 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. Any later than that and your chrysocephalum may not have a chance to fully mature. You can get started a few weeks earlier by starting your chrysocephalum indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Louisville. You can expect an average low temperature of 0°F in the coldest months of winter.

Keep in mind that USDA zone info for Louisville is just an average and the actual date of last frost is different every year. Since half of the time in Louisville you get a frost after April 15 be ready to cover your chrysocephalum in the event of a late frost.

USDA Zone Info for Louisville

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Louisville

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