One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A common way of figuring out when to plant black eyed susans is to consult the USDA zone info for Dardanelle.

Planting Calendar for Black Eyed Susans

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

You should not plant black eyed susans until after the last frost when the weather gets warmer because they require warm weather.

The earliest that you can plant black eyed susans in Dardanelle 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. You can get started a couple of weeks earlier by starting your black eyed susans indoors.

Last Frost Date

In Dardanelle the average date of last frost happens on April 15. In the coldest months of winter you can expect an average low temperature of 5°F.

Always keep in mind that the actual date of last frost is just an average because it is based on the USDA zone info for Dardanelle and it is different every year. Since half of the time in Dardanelle last frost occurs after April 15 be ready to protect your black eyed susans if you have a surprise late frost.

USDA Zone Info for Dardanelle

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	5°F
Highest Expected Low	10°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 10°F.

Plants to Grow in Dardanelle

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