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 first chance to plant new zealand spinach in Iron Mountain should be figured out by reviewing the USDA zone info.

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.

You can plant new zealand spinach a little earlier in the year because they do well in moderate cold.

The earliest that you can plant new zealand spinach in Iron Mountain 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 really do well. You can get started a couple of weeks earlier by starting your new zealand spinach indoors.

Last Frost Date

On average the last frost has passed is on May 15 in Iron Mountain. It might get as low as -30°F during the coldest months of winter.

Always keep in mind that the actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Iron Mountain and it is different every year. Half of the time in Iron Mountain it frosts late in the year after May 15 so make sure that you are ready to cover your new zealand spinach in the event of one of those late frosts.

USDA Zone Info for Iron Mountain

Here is the info for USDA Zone 4a.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-30°F
Highest Expected Low	-25°F

This means that on a really cold year, the coldest it will get is -30°F. On most years you should be prepared to experience lows near -25°F.

Plants to Grow in Iron Mountain

You may be interested in your other planting guides for Iron Mountain.