The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The best time to plant scarlet pimpernels in New London should be figured out by checking out the USDA zone info.

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 mild cold which means that you can plant them slightly earlier in the year than more sensitive plants.

The earliest that you can plant scarlet pimpernels in New London 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. Any later than that and your scarlet pimpernels may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your scarlet pimpernels indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in New London. It might get as low as -20°F during the coldest months of winter.

It's important to remember that USDA zone info for New London may not be accurate from year to year and the actual date of last frost will vary from year to year. Half of the time in New London last frost occurs after April 15 so make sure that you are ready to cover your scarlet pimpernels if you have a surprise late frost.

USDA Zone Info for New London

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in New London

You may be interested in your other planting guides for New London.