One of the best tools that you have as gardeners to help us determine 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.

In Mankato you can figure out when it's the best time to plant vinca vine by using the USDA zone info.

Planting Calendar for Vinca Vine

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

Vinca Vine tend to make it in moderate cold which means that you can plant them a bit earlier in the year than other frost tender plants.

The earliest that you can plant vinca vine in Mankato 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 vinca vine and expect a good harvest is probably August. Any later than that and your vinca vine may not have a chance to really do well. Starting your vinca vine indoors is a great way to get them started a little bit earlier.

Last Frost Date

In Mankato the average date of last frost happens on May 15. It might get as low as -25°F during the coldest months of winter.

Since the USDA zone info for Mankato may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Mankato you get a frost after May 15 so be sure to be ready to protect your vinca vine in the event of one of those late frosts.

USDA Zone Info for Mankato

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Mankato

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