One of the best tools that you have as gardeners to help us estimate 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.

In West Mifflin you can determine when you can plant black eyed susans by checking out 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.

You can not plant black eyed susans until after the last frost when the weather gets warmer because they do not do well in cold weather.

The earliest that you can plant black eyed susans in West Mifflin 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. 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 is on April 15 in West Mifflin. You can expect an average low temperature of -5°F in the coldest months of winter.

Since the USDA zone info for West Mifflin may not be accurate from year to year the actual date of last frost is different every year. Half of the time in West Mifflin you get surprised by a frost after April 15 so always be ready to protect your black eyed susans in the event of one of those late frosts.

USDA Zone Info for West Mifflin

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°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 0°F.

Plants to Grow in West Mifflin

You may be interested in your other planting guides for West Mifflin.