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.

A common way of determining when to plant torch lilys is to use the USDA zone info for Downers Grove.

Planting Calendar for Torch Lilys

Frost tolerance for torch lilys:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Since torch lilys are very cold tolerant you can plant them earlier in the year than other plants that might not handle the cold.

The earliest that you can plant torch lilys in Downers Grove 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 torch lilys and expect a good harvest is probably September. Any later than that and your torch lilys may not have a chance to really do well. Starting your torch lilys indoors is a great way to get them started a little bit earlier.

Last Frost Date

In Downers Grove the average date of last frost happens on April 15. It might get as low as -15°F during the coldest months of winter.

Always keep in mind that USDA zone info for Downers Grove is an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Downers Grove it frosts late in the year after April 15 so make sure that you are prepared to cover your torch lilys if you have a surprise late frost.

USDA Zone Info for Downers Grove

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 Downers Grove

You may be interested in your other planting guides for Downers Grove.