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 earliest that you can plant black eyed susans in Harker Heights should be estimated 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 the last frost has passed.

Since black eyed susans do not do well in cold weather 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 Harker Heights 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 really do well. You can get started a couple of weeks earlier by starting your black eyed susans indoors.

Last Frost Date

In Harker Heights the average date of last frost happens on March 15. You can expect an average low temperature of 15°F in the coldest months of winter.

Since the USDA zone info for Harker Heights is not always accurate the actual date of last frost will vary from year to year. Half of the time in Harker Heights last frost occurs after March 15 so make sure that you are ready to protect your black eyed susans in the event of one of those late frosts.

USDA Zone Info for Harker Heights

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°F

This means that on a really cold year, the coldest it will get is 15°F. On most years you should be prepared to experience lows near 20°F.

Plants to Grow in Harker Heights

You may be interested in your other planting guides for Harker Heights.