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

By reviewing the USDA zone info for Dodgeville it's possible to estimate when you can plant nasturtium.

Planting Calendar for Nasturtium

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

You can not plant nasturtium until after the last frost because they require warm weather.

The earliest that you can plant nasturtium in Dodgeville 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 really do well. Starting your nasturtium indoors is a great way to get them started a few weeks earlier.

Last Frost Date

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

Since the USDA zone info for Dodgeville is just an average the actual date of last frost will vary from year to year. Since half of the time in Dodgeville you get a frost after April 15 be ready to protect your nasturtium if you have one of those late frosts.

USDA Zone Info for Dodgeville

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 Dodgeville

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