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When to Plant New Zealand spinach in Superior, WI

One of the best tools that you have as gardeners to help us figure out your gardening schedule is the 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.

The USDA zone info for Superior can be looked at to figure out when it's the best time to plant new zealand spinach.


Planting Calendar for New Zealand spinach

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

New Zealand spinach are moderately cold tolerant which means that you can plant them earlier than other plants that might not handle the cold.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant new zealand spinach
Possibly ok, but a risky time to plant new zealand spinach
Probably not a good time to plant new zealand spinach

The earliest that you can plant new zealand spinach in Superior 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 new zealand spinach and expect a good harvest is probably August. Any later than that and your new zealand spinach may not have a chance to fully mature. If you are starting your new zealand spinach indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

In Superior the average date of last frost happens on May 15. In the coldest months of winter you can expect an average low temperature of -25°F.

Keep in mind that the actual date of last frost is an average because it is based on the USDA zone info for Superior and it can change quite a bit from year to year. Half of the time in Superior there is a last frost after May 15 so make sure that you are ready to protect your new zealand spinach in the event of one of those late frosts.

USDA Zone Info for Superior

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 Superior

You may be interested in your other planting guides for Superior.