The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You will be able to estimate when you can plant torch lilys by using the USDA zone info for Lowell.

Planting Calendar for Torch Lilys

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

Torch Lilys do well in pretty solid cold which means that you can plant them a lot earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant torch lilys in Lowell 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 fully mature. If you are starting your torch lilys indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Lowell. In the coldest months of winter you should expect an average low temperature of -15°F.

Just be sure to remember that USDA zone info for Lowell is not always accurate and the actual date of last frost will vary from year to year. Since half of the time in Lowell last frost occurs after April 15 be ready to cover your torch lilys in the event of one of those late frosts.

USDA Zone Info for Lowell

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 Lowell

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