The USDA Zone info is a great tool for gardeners to help us estimate 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.

You will be able to figure out when it's a good idea to plant evolvulus by referring to the USDA zone info for Wooster.

Planting Calendar for Evolvulus

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

Since evolvulus do not do well in cold weather you really should wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant evolvulus in Wooster 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 little bit earlier by starting your evolvulus indoors.

Last Frost Date

The average date of last frost is April 15 in Wooster. In the coldest months of winter you can expect an average low temperature of -10°F.

Remember that the actual date of last frost is not always accurate because it is based on the USDA zone info for Wooster and it is different every year. Since half of the time in Wooster last frost occurs after April 15 be ready to cover your evolvulus in the event of one of those late frosts.

USDA Zone Info for Wooster

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°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 -5°F.

Plants to Grow in Wooster

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