When to Plant Onions in Stevens Point, WI

Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By looking at the USDA zone info for Stevens Point it's possible to estimate when to plant onions.


Planting Calendar for Onions

Frost tolerance for onions: Very tolerant of frost.
When to plant: Up to 7 weeks before last frost.

Since onions do well in cold you can plant them quite a bit earlier in the year than more sensitive plants.

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

The earliest that you can plant onions in Stevens Point 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 onions and expect a good harvest is probably August. Any later than that and your onions may not have a chance to really do well. You can get started a few weeks earlier by starting your onions indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on May 15 in Stevens Point. It might get as low as -25°F during the coldest months of winter.

Since the USDA zone info for Stevens Point 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 Stevens Point you get surprised by a frost after May 15 be ready to protect your onions if you have a late frost.

USDA Zone Info for Stevens Point

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)May 15
Average Date of First Frost (fall)September 15
Lowest Expected Low-25°F
Highest Expected Low-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Stevens Point

You may be interested in your other planting guides for Stevens Point.