Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By using the USDA zone info for Lisle it's a good idea to determine when it's possible to plant chamomile.

Planting Calendar for Chamomile

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

Chamomile are moderately cold tolerant which means that you can plant them earlier than other frost tender plants.

The earliest that you can plant chamomile in Lisle 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 chamomile and expect a good harvest is probably September. Any later than that and your chamomile may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your chamomile indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Lisle. In the coldest months of winter you should expect an average low temperature of -15°F.

Since the USDA zone info for Lisle may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Lisle there is a last frost after April 15 so be sure to be ready to cover your chamomile if you have one of those late frosts.

USDA Zone Info for Lisle

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 Lisle

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