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

A common way of determining when it's the best time to plant oriental poppies is to consult the USDA zone info for Two Rivers.

Planting Calendar for Oriental poppies

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

Since oriental poppies do well in moderate cold you can plant them a bit earlier in the year than more sensitive plants.

The earliest that you can plant oriental poppies in Two Rivers 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 oriental poppies and expect a good harvest is probably September. If you wait any later than that and your oriental poppies may not have a chance to fully mature. You can get started a few weeks earlier by starting your oriental poppies indoors.

Last Frost Date

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

Since the USDA zone info for Two Rivers may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Since half of the time in Two Rivers you get a frost after April 15 be ready to protect your oriental poppies in the event of a late frost.

USDA Zone Info for Two Rivers

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 Two Rivers

You may be interested in your other planting guides for Two Rivers.