Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You can estimate when you can plant evolvulus in Herkimer 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 a bad idea to plant evolvulus until after the last frost when the weather gets warmer because they do not do well in cold weather.

The earliest that you can plant evolvulus in Herkimer 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 grow to maturity. You can get started a few 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 Herkimer. You should expect an average low temperature of -15°F in the coldest months of winter.

It's important to remember that USDA zone info for Herkimer may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in Herkimer there is a last frost after April 15 so always be ready to protect your evolvulus if you have a surprise late frost.

USDA Zone Info for Herkimer

Here is the info for USDA Zone 5b.

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

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Herkimer

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