When can I plant Doronicum in Zone 3b

One of the first steps we take when we are estimating our gardening schedule is find our USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for our area.

You can estimate when it's possible to plant doronicum in Zone 3b by reviewing the USDA zone info.


Planting Calendar for Doronicum

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

Doronicum do well in moderate cold which means that you can plant them earlier than other plants that might not handle the cold.

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

The earliest that you can plant doronicum in Zone 3b 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 doronicum and expect a good harvest is probably August. Any later than that and your doronicum may not have a chance to really do well. You can get started a little bit earlier by starting your doronicum indoors.

Last Frost Date

On average the last frost has passed is on May 15 in Zone 3b. In the coldest months of winter we can expect an average low temperature of -35°F.

It's important to remember that USDA zone info for Zone 3b may not be accurate from year to year and our actual date of last frost will vary from year to year. Half of the time in Zone 3b we get a frost after May 15 so make sure that you are prepared to cover your doronicum if we have a late frost.

USDA Zone Info for Zone 3b

Here is the info for USDA Zone 3b.

Average Date of Last Frost (spring)May 15
Average Date of First Frost (fall)September 15
Lowest Expected Low-35°F
Highest Expected Low-30°F

This means that on a really cold year, the coldest it will get is -35°F. On most years you should be prepared to experience lows near -30°F.

Plants to Grow in Zone 3b

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