One of the first steps you take when you are estimating your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By reviewing the USDA zone info for Blair it's a good idea to estimate when it's a good idea to plant vinca vine.

Planting Calendar for Vinca Vine

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

Since vinca vine do well in moderate cold you can plant them a bit earlier in the year than other frost tender plants.

The earliest that you can plant vinca vine in Blair is February. However, you really should wait until March 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 September. You probably don't want to wait any later than that or else your vinca vine may not have a chance to fully mature. Starting your vinca vine indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average all chance of frost has passed is on April 15 in Blair. It might get as low as -15°F during the coldest months of winter.

Remember that the actual date of last frost is just an average because it is based on the USDA zone info for Blair and it can change quite a bit from year to year. Half of the time in Blair you get a frost after April 15 so just be sure to be ready to protect your vinca vine in the event of one of those late frosts.

USDA Zone Info for Blair

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Blair

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