One of the first steps you take when you are making a decision about your gardening schedule is find your 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 first opportunity to plant black eyed susans in Redwood Falls 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 has passed.

Since black eyed susans require warm weather it's important to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant black eyed susans in Redwood Falls is May. However, you really should wait until June 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 grow to maturity. You can get started a few weeks earlier by starting your black eyed susans indoors.

Last Frost Date

The average date of last frost is May 15 in Redwood Falls. It might get as low as -25°F during the coldest months of winter.

Since the USDA zone info for Redwood Falls is just an average the actual date of last frost will vary from year to year. Half of the time in Redwood Falls you get surprised by a frost after May 15 so be sure to be ready to protect your black eyed susans in the event of a late frost.

USDA Zone Info for Redwood Falls

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

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

Plants to Grow in Redwood Falls

You may be interested in your other planting guides for Redwood Falls.