One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The first opportunity to plant purple bell vines in American Fork can be estimated 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.

Purple Bell Vines tend to make it in very little cold which tells us that you can plant them a bit earlier in the year than other frost tender plants.

The earliest that you can plant purple bell vines in American Fork 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 grow to maturity. If you are starting your purple bell vines indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in American Fork. It might get as low as -5°F during the coldest months of winter.

Since the USDA zone info for American Fork is just an average the actual date of last frost will vary from year to year. Half of the time in American Fork it frosts late in the year after April 15 so be sure to be ready to protect your purple bell vines in the event of a surprise late frost.

USDA Zone Info for American Fork

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in American Fork

You may be interested in your other planting guides for American Fork.