The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Antigo you can determine when to plant nasturtium by referring to the USDA zone info.

Planting Calendar for Nasturtium

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

Since nasturtium are not cold tolerant you really should wait until after the last frost before you can plant them.

The earliest that you can plant nasturtium in Antigo is May. However, you really should wait until June 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 grow to maturity. Starting your nasturtium indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

In Antigo the average date of last frost happens on May 15. It might get as low as -30°F during the coldest months of winter.

Since the USDA zone info for Antigo is just an average the actual date of last frost is different every year. Half of the time in Antigo there is a last frost after May 15 so just be sure to be ready to cover your nasturtium in the event of a late frost.

USDA Zone Info for Antigo

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 Antigo

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