The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You should be able to figure out when it's the best time to plant poppies by checking out the USDA zone info for Glendale Heights.

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 get them planted earlier than plants that are more sensitive to the cold.

The earliest that you can plant poppies in Glendale Heights 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. You probably don't want to wait any later than that or else your poppies may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your poppies indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Glendale Heights. In the coldest months of winter you can expect an average low temperature of -15°F.

Since the USDA zone info for Glendale Heights may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Glendale Heights there is a last frost after April 15 so be sure to be ready to protect your poppies in the event of a late frost.

USDA Zone Info for Glendale Heights

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 Glendale Heights

You may be interested in your other planting guides for Glendale Heights.