When can I plant Daylily in Zone 3a

One of the best tools that we have as gardeners to help us determine our 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 our area.

One way of getting a good idea when to plant daylily is to check out the USDA zone info for Zone 3a.


Planting Calendar for Daylily

Frost tolerance for daylily: Tolerant of some frost.
When you should plant them: Up to 5 weeks before last frost.

Since daylily are moderately cold tolerant you can plant them just a bit earlier in the year than more sensitive plants.

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

The earliest that you can plant daylily in Zone 3a 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 daylily and expect a good harvest is probably August. You probably don't want to wait any later than that or else your daylily may not have a chance to fully mature. If you are starting your daylily 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 3a. In the coldest months of winter we can expect an average low temperature of -40°F.

Just be sure to remember that USDA zone info for Zone 3a may not be accurate from year to year and our actual date of last frost changes from year to year. Half of the time in Zone 3a last frost occurs after May 15 so make sure that you are prepared to cover your daylily in the event of one of those late frosts.

USDA Zone Info for Zone 3a

Here is the info for USDA Zone 3a.

Average Date of Last Frost (spring)May 15
Average Date of First Frost (fall)September 15
Lowest Expected Low-40°F
Highest Expected Low-35°F

This means that on a really cold year, the coldest it will get is -40°F. On most years you should be prepared to experience lows near -35°F.

Plants to Grow in Zone 3a

You may be interested in our other planting guides for Zone 3a.