The USDA Zone info is a great tool for gardeners to help us estimate 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 earliest that you can plant black eyed susans in Wharton can be estimated by reviewing the USDA zone info.

Planting Calendar for Black Eyed Susans

Frost tolerance for black eyed susans:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Black Eyed Susans are not cold tolerant which means that it is necessary to wait until it warms up after all chance of frost has passed before you can plant them.

The earliest that you can plant black eyed susans in Wharton 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 black eyed susans and expect a good harvest is probably September. Any later than that and your black eyed susans may not have a chance to fully mature. You can get started a little bit earlier by starting your black eyed susans indoors.

Last Frost Date

On average all chance of frost has passed is on February 15 in Wharton. You should expect an average low temperature of 20°F in the coldest months of winter.

It's important to remember that USDA zone info for Wharton is not always accurate and the actual date of last frost can change quite a bit from year to year. Since half of the time in Wharton it frosts late in the year after February 15 be ready to cover your black eyed susans in the event of one of those late frosts.

USDA Zone Info for Wharton

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Wharton

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