Before planting it is a good idea to find your USDA Zone info to figure out 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.

You can estimate when it's possible to plant iceland poppy in Wyoming 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 are moderately cold tolerant which means that you can plant them earlier than other plants that might not handle the cold.

The earliest that you can plant iceland poppy in Wyoming is February. However, you really should wait until March 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 September. 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 couple of weeks earlier.

Last Frost Date

On average the last frost is on April 15 in Wyoming. In the coldest months of winter you should expect an average low temperature of -15°F.

Since the USDA zone info for Wyoming is an average the actual date of last frost is different every year. Since half of the time in Wyoming you get a frost after April 15 be ready to protect your iceland poppy in the event of one of those late frosts.

USDA Zone Info for Wyoming

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Wyoming

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