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.

The first chance to plant iceland poppy in Sioux Falls can be figured out by using the USDA zone info.

Planting Calendar for Iceland Poppy

Frost tolerance for iceland poppy:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

You can plant iceland poppy a little bit earlier in the year because they do well in moderate cold.

The earliest that you can plant iceland poppy in Sioux Falls is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant iceland poppy and expect a good harvest is probably August. If you wait any later than that and your iceland poppy may not have a chance to really do well. Starting your iceland poppy indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average all chance of frost has passed is on May 15 in Sioux Falls. It might get as low as -25°F during the coldest months of winter.

Since the USDA zone info for Sioux Falls is just an average the actual date of last frost changes from year to year. Half of the time in Sioux Falls last frost occurs after May 15 so always be ready to cover your iceland poppy 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.