Before planting it is a good idea to find your USDA Zone info to figure out 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.

A way of estimating when to plant daylily is to use the USDA zone info for Highland Park.

Planting Calendar for Daylily

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

Daylily tend to make it in some cold which means that you can plant them just a bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant daylily in Highland Park is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant daylily and expect a good harvest is probably September. You probably don't want to wait any later than that or else your daylily may not have a chance to grow to maturity. Starting your daylily indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Highland Park. It might get as low as -15°F during the coldest months of winter.

Keep in mind that the actual date of last frost is an average because it is based on the USDA zone info for Highland Park and it will vary from year to year. Since half of the time in Highland Park it frosts late in the year after April 15 be ready to protect your daylily if you have a late frost.

USDA Zone Info for Highland Park

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 Highland Park

You may be interested in your other planting guides for Highland Park.