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.

In Union you can estimate when you can plant poppies by reviewing the USDA zone info.

Planting Calendar for Poppies

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

Since poppies are moderately cold tolerant you can plant them a little earlier in the year than other frost tender plants.

The earliest that you can plant poppies in Union 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 fully mature. You can get started a little bit earlier by starting your poppies indoors.

Last Frost Date

The average date of last frost is April 15 in Union. You should expect an average low temperature of -10°F in the coldest months of winter.

Since the USDA zone info for Union is an average the actual date of last frost can change quite a bit from year to year. Half of the time in Union it frosts late in the year after April 15 so make sure that you are ready to protect your poppies in the event of a surprise late frost.

USDA Zone Info for Union

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Union

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