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When to Plant Regal Geranium in New London, WI

One of the first steps you take when you are estimating 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.

In New London you can estimate when you can plant regal geranium by using the USDA zone info.


Planting Calendar for Regal Geranium

Frost tolerance for regal geranium: Tolerant of a very small amount of frost.
When to plant: Up to 3 weeks before last frost.

Regal Geranium tend to make it in very little cold which tells us that you can plant them slightly earlier in the year than other plants that might not handle the cold.

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

The earliest that you can plant regal geranium 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 regal geranium and expect a good harvest is probably August. You probably don't want to wait any later than that or else your regal geranium may not have a chance to fully mature. If you are starting your regal geranium indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

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

Since the USDA zone info for New London may not be accurate from year to year the actual date of last frost changes from year to year. Half of the time in New London you get surprised by a frost after April 15 so be sure to be ready to cover your regal geranium if you have a 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.