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

In Powell you can determine when it's the best time to plant evolvulus by checking out the USDA zone info.

Planting Calendar for Evolvulus

Frost tolerance for evolvulus:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

It's not a good idea to plant evolvulus until after the last frost because they do not do well in cold weather.

The earliest that you can plant evolvulus in Powell is May. However, you really should wait until June 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 little bit earlier by starting your evolvulus indoors.

Last Frost Date

On average all chance of frost has passed is on May 15 in Powell. It might get as low as -25°F during the coldest months of winter.

Since the USDA zone info for Powell may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Powell you get a frost after May 15 so make sure that you are ready to cover your evolvulus if you have a surprise late frost.

USDA Zone Info for Powell

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 Powell

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