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.

The USDA zone info for Munster can be reffered to in order to determine when it's possible to plant scarlet pimpernels.

Planting Calendar for Scarlet Pimpernels

Frost tolerance for scarlet pimpernels:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Scarlet Pimpernels can survive in a tiny bit of cold which means that you can plant them just a tiny bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant scarlet pimpernels in Munster is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant scarlet pimpernels and expect a good harvest is probably August. If you wait any later than that and your scarlet pimpernels may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your scarlet pimpernels indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Munster. You should expect an average low temperature of -15°F in the coldest months of winter.

Since the USDA zone info for Munster is an average the actual date of last frost can change quite a bit from year to year. Half of the time in Munster you get surprised by a frost after April 15 so make sure that you are ready to protect your scarlet pimpernels if you have a late frost.

USDA Zone Info for Munster

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 Munster

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