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.

By reviewing the USDA zone info for Ontario it's a good idea to figure out when it's the best time to plant torch lilys.

Planting Calendar for Torch Lilys

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

You can plant torch lilys much earlier in the year because they are one of those plants that can tolerate quite a bit of cold weather.

The earliest that you can plant torch lilys in Ontario 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. You probably don't want to wait any later than that or else your torch lilys may not have a chance to grow to maturity. You can get started a little bit earlier by starting your torch lilys indoors.

Last Frost Date

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

Always keep in mind that the actual date of last frost is just an average because it is based on the USDA zone info for Ontario and it can change quite a bit from year to year. Half of the time in Ontario last frost occurs after April 15 so be sure to be ready to cover your torch lilys in the event of a late frost.

USDA Zone Info for Ontario

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 Ontario

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