One of the best tools that you have as gardeners to help us figure out your gardening schedule is the 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.

You can estimate when it's the best time to plant purple bell vines in Albert Lea by using the USDA zone info.

Planting Calendar for Purple Bell Vines

Frost tolerance for purple bell vines:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Since purple bell vines are barely cold tolerant you can plant them a bit earlier in the year than more sensitive plants.

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

Last Frost Date

The average date of last frost is May 15 in Albert Lea. It might get as low as -25°F during the coldest months of winter.

Since the USDA zone info for Albert Lea is just an average the actual date of last frost is different every year. Since half of the time in Albert Lea it frosts late in the year after May 15 be ready to cover your purple bell vines if you have a late frost.

USDA Zone Info for Albert Lea

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 Albert Lea

You may be interested in your other planting guides for Albert Lea.