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

A way of determining when you can plant purple bell vines is to refer to the USDA zone info for Oconto.

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.

Purple Bell Vines do well in some cold which tells us that you can plant them slightly earlier in the year than other frost tender plants.

The earliest that you can plant purple bell vines in Oconto 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 purple bell vines and expect a good harvest is probably August. You probably don't want to wait any later than that or else your purple bell vines may not have a chance to fully mature. If you are starting your purple bell vines indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Oconto. In the coldest months of winter you should expect an average low temperature of -20°F.

Since the USDA zone info for Oconto is an average the actual date of last frost is different every year. Half of the time in Oconto there is a last frost after April 15 so just be sure to be ready to cover your purple bell vines in the event of one of those late frosts.

USDA Zone Info for Oconto

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Oconto

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