Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Sioux Falls should be reffered to in order to estimate when it's a good idea to plant stoneseed.

Planting Calendar for Stoneseed

Frost tolerance for stoneseed:	Not tolerant of frost.
When to plant:	After the last frost.

It's probably a bad idea to plant stoneseed until after the last frost because they are not cold tolerant.

The earliest that you can plant stoneseed in Sioux 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 stoneseed and expect a good harvest is probably August. You probably don't want to wait any later than that or else your stoneseed may not have a chance to fully mature. If you are starting your stoneseed indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on May 15 in Sioux Falls. It might get as low as -25°F during the coldest months of winter.

Always keep in mind that USDA zone info for Sioux Falls is not always accurate and the actual date of last frost is different every year. Half of the time in Sioux Falls you get a frost after May 15 so make sure that you are ready to protect your stoneseed if you have a late frost.

USDA Zone Info for Sioux 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 Sioux Falls

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