The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Idaho Falls you can figure out when you can plant evolvulus by reviewing the USDA zone info.

Planting Calendar for Evolvulus

Frost tolerance for evolvulus:	Not tolerant of frost.
When to plant:	After the last frost.

It's not a good idea to plant evolvulus until after all chance of frost has passed because they are not cold tolerant.

The earliest that you can plant evolvulus in Idaho Falls 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 evolvulus and expect a good harvest is probably August. Any later than that and your evolvulus may not have a chance to really do well. You can get started a couple of weeks earlier by starting your evolvulus indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Idaho Falls. In the coldest months of winter you can expect an average low temperature of -20°F.

Remember that the actual date of last frost is not always accurate because it is based on the USDA zone info for Idaho Falls and it changes from year to year. Since half of the time in Idaho Falls you get surprised by a frost after April 15 be ready to protect your evolvulus in the event of one of those late frosts.

USDA Zone Info for Idaho Falls

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 Idaho Falls

You may be interested in your other planting guides for Idaho Falls.