One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The first opportunity to plant echinacea in Radcliff can be determined by using the USDA zone info.

Planting Calendar for Echinacea

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

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

The earliest that you can plant echinacea in Radcliff 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 echinacea and expect a good harvest is probably August. If you wait any later than that and your echinacea may not have a chance to fully mature. You can get started a few weeks earlier by starting your echinacea indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Radcliff. In the coldest months of winter you should expect an average low temperature of -5°F.

Since the USDA zone info for Radcliff may not be accurate from year to year the actual date of last frost will vary from year to year. Half of the time in Radcliff there is a last frost after April 15 so make sure that you are prepared to cover your echinacea in the event of a late frost.

USDA Zone Info for Radcliff

Here is the info for USDA Zone 6b.

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

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

Plants to Grow in Radcliff

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