The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Madison you can figure out when to plant iceland poppy 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.

Iceland Poppy do well in moderate cold which means that you can get them planted earlier than other plants that might not handle the cold.

The earliest that you can plant iceland poppy in Madison 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. Any later than that and your iceland poppy may not have a chance to grow to maturity. 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 Madison. You can expect an average low temperature of -25°F in the coldest months of winter.

Remember that USDA zone info for Madison may not be accurate from year to year and the actual date of last frost changes from year to year. Half of the time in Madison you get surprised by a frost after May 15 so be sure to be ready to protect your iceland poppy in the event of a late frost.

USDA Zone Info for Madison

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 Madison

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