When to Plant Hemerocallis in New Berlin, WI

Before planting it is a good idea to find your USDA Zone info to figure out 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.

You can figure out when it's possible to plant hemerocallis in New Berlin by looking at the USDA zone info.


Planting Calendar for Hemerocallis

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

Hemerocallis do ok in a little bit of cold which means that you can plant them a bit earlier in the year than plants that are more sensitive to the cold.

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 Berlin 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. If you wait any later than that and your hemerocallis may not have a chance to fully mature. You can get started a few weeks earlier by starting your hemerocallis indoors.

Last Frost Date

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

It's important to remember that USDA zone info for New Berlin is not always accurate and the actual date of last frost can change quite a bit from year to year. Half of the time in New Berlin there is a last frost after April 15 so always be ready to protect your hemerocallis in the event of one of those late frosts.

USDA Zone Info for New Berlin

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 New Berlin

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