When to Plant Black Eyed Susans in Radcliff, KY

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

The best time to plant black eyed susans in Radcliff can be figured out by using the USDA zone info.


Planting Calendar for Black Eyed Susans

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

Black Eyed Susans require warm weather which means that it is necessary to wait until it warms up after the last frost when the weather gets warmer before you can plant them.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant black eyed susans
Possibly ok, but a risky time to plant black eyed susans
Probably not a good time to plant black eyed susans

The earliest that you can plant black eyed susans in Radcliff 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 black eyed susans and expect a good harvest is probably August. Any later than that and your black eyed susans may not have a chance to grow to maturity. If you are starting your black eyed susans indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

In Radcliff the average date of last frost happens on April 15. You can expect an average low temperature of -5°F in the coldest months of winter.

It's important to remember that USDA zone info for Radcliff is an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Radcliff there is a last frost after April 15 so always be ready to protect your black eyed susans if you have a surprise 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 Low0°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.