When can I plant Torch Lilys in Zone 4a

The USDA Zone info is a great tool for gardeners to help us estimate our gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for our area.

The best time to plant torch lilys in Zone 4a should be determined by reviewing the USDA zone info.


Planting Calendar for Torch Lilys

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

Torch Lilys can survive in pretty solid cold which means that you can plant them much earlier in the year than other frost tender plants.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant torch lilys
Possibly ok, but a risky time to plant torch lilys
Probably not a good time to plant torch lilys

The earliest that you can plant torch lilys in Zone 4a is March. However, you really should wait until April 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 August. If you wait any later than that and your torch lilys may not have a chance to really do well. 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 May 15 in Zone 4a. We can expect an average low temperature of -30°F in the coldest months of winter.

Since the USDA zone info for Zone 4a is just an average our actual date of last frost is different every year. Since half of the time in Zone 4a last frost occurs after May 15 be ready to cover your torch lilys in the event of a late frost.

USDA Zone Info for Zone 4a

Here is the info for USDA Zone 4a.

Average Date of Last Frost (spring)May 15
Average Date of First Frost (fall)September 15
Lowest Expected Low-30°F
Highest Expected Low-25°F

This means that on a really cold year, the coldest it will get is -30°F. On most years you should be prepared to experience lows near -25°F.

Plants to Grow in Zone 4a

You may be interested in our other planting guides for Zone 4a.