One of the first steps you take when you are getting a good idea 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.

A way of determining when to plant iceland poppy is to examine the USDA zone info for Mankato.

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 just a bit earlier in the year because they are one of those plants that can tolerate a little bit of cold weather.

The earliest that you can plant iceland poppy in Mankato 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

The average date of last frost is May 15 in Mankato. In the coldest months of winter you can expect an average low temperature of -25°F.

Remember that USDA zone info for Mankato is not always accurate and the actual date of last frost changes from year to year. Half of the time in Mankato there is a last frost after May 15 so make sure that you are prepared to protect your iceland poppy if you have a late frost.

USDA Zone Info for Mankato

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 Mankato

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