One of the best tools that you have as gardeners to help us determine 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 should be able to estimate when you can plant purple bell vines by using the USDA zone info for Union City.

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 ok in a tiny bit of cold which tells us that you can plant them just a tiny bit earlier in the year than other frost tender plants.

The earliest that you can plant purple bell vines in Union City 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. You can get started a few weeks earlier by starting your purple bell vines indoors.

Last Frost Date

The average date of last frost is March 15 in Union City. You can expect an average low temperature of 10°F in the coldest months of winter.

Since the USDA zone info for Union City may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Half of the time in Union City last frost occurs after March 15 so be sure to be ready to cover your purple bell vines in the event of a late frost.

USDA Zone Info for Union City

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°F

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

Plants to Grow in Union City

You may be interested in your other planting guides for Union City.