When to Plant Hemerocallis in New London, WI

The USDA Zone info is a great tool for gardeners to help us determine your gardening 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 New London can be reviewed to determine when it's a good idea to plant hemerocallis.


Planting Calendar for Hemerocallis

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

Hemerocallis are one of those plants that can tolerate a little bit of cold weather which means that you can plant them earlier than more sensitive plants.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant hemerocallis
Possibly ok, but a risky time to plant hemerocallis
Probably not a good time to plant hemerocallis

The earliest that you can plant hemerocallis in New London 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 hemerocallis and expect a good harvest is probably September. Any later than that and your hemerocallis may not have a chance to really do well. Starting your hemerocallis indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in New London. You can expect an average low temperature of -20°F in the coldest months of winter.

Always keep in mind that USDA zone info for New London is an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in New London you get surprised by a frost after April 15 be ready to cover your hemerocallis 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.