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.

By using the USDA zone info for Lake Elmo it's a good idea to estimate when it's possible to plant hosta.

Planting Calendar for Hosta

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

Since hosta do well in moderate cold you can plant them a bit earlier in the year than more sensitive plants.

The earliest that you can plant hosta 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 hosta and expect a good harvest is probably August. Any later than that and your hosta may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your hosta indoors.

Last Frost Date

On average the last frost is on May 15 in Lake Elmo. It might get as low as -25°F during the coldest months of winter.

Keep in mind that USDA zone info for Lake Elmo is just an average and the actual date of last frost changes from year to year. Since half of the time in Lake Elmo it frosts late in the year after May 15 be ready to cover your hosta if you have 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.