One of the best tools that you have as gardeners to help us figure out your gardening schedule is the 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.

By referring to the USDA zone info for Island Lake it's possible to determine when it's a good idea to plant poppies.

Planting Calendar for Poppies

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

Poppies are moderately cold tolerant which tells us that you can plant them earlier than other frost tender plants.

The earliest that you can plant poppies in Island Lake 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 poppies and expect a good harvest is probably September. Any later than that and your poppies may not have a chance to fully mature. If you are starting your poppies indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

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

Always keep in mind that USDA zone info for Island Lake is an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Island Lake there is a last frost after April 15 so be sure to be ready to cover your poppies in the event of a late frost.

USDA Zone Info for Island Lake

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 Island Lake

You may be interested in your other planting guides for Island Lake.