One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You should be able to estimate when it's possible to plant nasturtium by reviewing the USDA zone info for Sturgis.

Planting Calendar for Nasturtium

Frost tolerance for nasturtium:	Not tolerant of frost.
When to plant:	After the last frost.

It's probably a bad idea to plant nasturtium until after the last frost because they require warm weather.

The earliest that you can plant nasturtium in Sturgis is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant nasturtium and expect a good harvest is probably August. Any later than that and your nasturtium may not have a chance to fully mature. If you are starting your nasturtium indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Sturgis. You should expect an average low temperature of -20°F in the coldest months of winter.

Keep in mind that USDA zone info for Sturgis is an average and the actual date of last frost will vary from year to year. Half of the time in Sturgis there is a last frost after April 15 so make sure that you are prepared to cover your nasturtium in the event of a late frost.

USDA Zone Info for Sturgis

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 Sturgis

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