The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You should be able to figure out when to plant black eyed susans by reviewing the USDA zone info for Havelock.

Planting Calendar for Black Eyed Susans

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

Black Eyed Susans are not cold tolerant which tells us that you need 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 Havelock 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. If you wait 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 few weeks earlier.

Last Frost Date

The average date of last frost is March 15 in Havelock. You should expect an average low temperature of 10°F in the coldest months of winter.

Since the USDA zone info for Havelock is an average the actual date of last frost can change quite a bit from year to year. Half of the time in Havelock it frosts late in the year after March 15 so make sure that you are ready to cover your black eyed susans if you have a late frost.

USDA Zone Info for Havelock

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°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 15°F.

Plants to Grow in Havelock

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