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

In Scottsbluff you can determine when you can plant purple bell vines by checking out 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 do ok in moderate cold 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 Scottsbluff 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. Any later than that and your purple bell vines may not have a chance to really do well. You can get started a couple of weeks earlier by starting your purple bell vines indoors.

Last Frost Date

In Scottsbluff the average date of last frost happens on April 15. You should expect an average low temperature of -20°F in the coldest months of winter.

Since the USDA zone info for Scottsbluff is just an average the actual date of last frost changes from year to year. Half of the time in Scottsbluff you get surprised by a frost after April 15 so just be sure to be ready to cover your purple bell vines if you have one of those late frosts.

USDA Zone Info for Scottsbluff

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 Scottsbluff

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