One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By referring to the USDA zone info for Archbald you will be able 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.

Since scarlet pimpernels do ok in moderate cold you can plant them a bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant scarlet pimpernels in Archbald 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 fully mature. You can get started a couple of weeks earlier by starting your scarlet pimpernels indoors.

Last Frost Date

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

Since the USDA zone info for Archbald is not always accurate the actual date of last frost can change quite a bit from year to year. Since half of the time in Archbald it frosts late in the year after April 15 be ready to cover your scarlet pimpernels if you have one of those late frosts.

USDA Zone Info for Archbald

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 Archbald

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