One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

It's a good idea to estimate when it's a good idea to plant daylily by looking at the USDA zone info for Lombard.

Planting Calendar for Daylily

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

You can plant daylily a little bit earlier in the year because they are one of those plants that can tolerate a little bit of cold weather.

The earliest that you can plant daylily in Lombard 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. If you wait any later than that and your daylily may not have a chance to really do well. If you are starting your daylily indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Lombard. It might get as low as -15°F during the coldest months of winter.

Since the USDA zone info for Lombard is an average the actual date of last frost is different every year. Since half of the time in Lombard you get surprised by a frost after April 15 be ready to protect your daylily if you have a late frost.

USDA Zone Info for Lombard

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 Lombard

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