Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In International Falls you can estimate when it's the best time to plant veronica by checking out the USDA zone info.

Planting Calendar for Veronica

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

Veronica tend to make it in some cold which tells us that you can plant them just a bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant veronica in International Falls 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 veronica and expect a good harvest is probably August. You probably don't want to wait any later than that or else your veronica may not have a chance to really do well. You can get started a couple of weeks earlier by starting your veronica indoors.

Last Frost Date

The average date of last frost is May 15 in International Falls. In the coldest months of winter you can expect an average low temperature of -40°F.

Since the USDA zone info for International Falls may not be accurate from year to year the actual date of last frost is different every year. Since half of the time in International Falls you get surprised by a frost after May 15 be ready to cover your veronica in the event of a late frost.

USDA Zone Info for International Falls

Here is the info for USDA Zone 3a.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-40°F
Highest Expected Low	-35°F

This means that on a really cold year, the coldest it will get is -40°F. On most years you should be prepared to experience lows near -35°F.

Plants to Grow in International Falls

You may be interested in your other planting guides for International Falls.