Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By looking at the USDA zone info for Wharton you should be able to estimate when it's a good idea to plant black eyed susans.

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.

Since black eyed susans are not cold tolerant it's important to wait until after the last frost has passed before you can plant them.

The earliest that you can plant black eyed susans in Wharton 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 fully mature. Starting your black eyed susans indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Wharton. In the coldest months of winter you can expect an average low temperature of -10°F.

Since the USDA zone info for Wharton is not always accurate the actual date of last frost can change quite a bit from year to year. Half of the time in Wharton you get a frost after April 15 so be sure to be ready to cover your black eyed susans in the event of a surprise late frost.

USDA Zone Info for Wharton

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 Wharton

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