Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Rupert can be used to determine when it's a good idea 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 do well in some cold which tells us that you can plant them a bit earlier in the year than other frost tender plants.

The earliest that you can plant scarlet pimpernels in Rupert 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. You probably don't want to wait any later than that or else your scarlet pimpernels may not have a chance to really do well. You can get started a little bit earlier by starting your scarlet pimpernels indoors.

Last Frost Date

The average date of last frost is April 15 in Rupert. In the coldest months of winter you can expect an average low temperature of -10°F.

Since the USDA zone info for Rupert is not always accurate the actual date of last frost is different every year. Since half of the time in Rupert last frost occurs after April 15 be ready to cover your scarlet pimpernels if you have a late frost.

USDA Zone Info for Rupert

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 Rupert

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