When can I plant Purple Bell Vines in Zone 4b

Before planting it is a good idea to find our USDA Zone info to figure out our garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for our area.

The first opportunity to plant purple bell vines in Zone 4b should be figured out by reviewing 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 you should plant them: Up to 3 weeks before last frost.

Purple Bell Vines do ok in moderate cold which tells us that you can start planting them slightly earlier than other plants that might not handle the cold.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant purple bell vines
Possibly ok, but a risky time to plant purple bell vines
Probably not a good time to plant purple bell vines

The earliest that you can plant purple bell vines in Zone 4b 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 couple of weeks earlier.

Last Frost Date

On average the last frost has passed is on May 15 in Zone 4b. It might get as low as -25°F during the coldest months of winter.

Keep in mind that USDA zone info for Zone 4b is an average and our actual date of last frost changes from year to year. Half of the time in Zone 4b we get surprised by a frost after May 15 so be sure to be ready to cover your purple bell vines in the event of a surprise late frost.

USDA Zone Info for Zone 4b

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 Zone 4b

You may be interested in our other planting guides for Zone 4b.