One of the first steps you take when you are getting a good idea 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 chance to plant coreopsis in Lake Elmo should be determined by looking at the USDA zone info.

Planting Calendar for Coreopsis

Frost tolerance for coreopsis:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Coreopsis do well in moderate cold which means that you can plant them a little bit earlier than other frost tender plants.

The earliest that you can plant coreopsis in Lake Elmo 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 coreopsis and expect a good harvest is probably August. If you wait any later than that and your coreopsis may not have a chance to grow to maturity. You can get started a little bit earlier by starting your coreopsis indoors.

Last Frost Date

On average the last frost has passed is on May 15 in Lake Elmo. You can expect an average low temperature of -25°F in the coldest months of winter.

Always keep in mind that USDA zone info for Lake Elmo is just an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Lake Elmo it frosts late in the year after May 15 so just be sure to be ready to cover your coreopsis in the event of a surprise late frost.

USDA Zone Info for Lake Elmo

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 Lake Elmo

You may be interested in your other planting guides for Lake Elmo.