When can I plant Roses in Zone 1b

Before planting it is a good idea to find our USDA Zone info to figure out our garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for our area.

It's possible to estimate when you can plant roses by looking at the USDA zone info for Zone 1b.


Planting Calendar for Roses

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

Roses can survive in mild cold which tells us that you can plant them just a bit earlier in the year than other frost tender plants.

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

The earliest that you can plant roses in Zone 1b is May. However, you really should wait until June if you don't want to take any chances.

The last month that you can plant roses and expect a good harvest is probably July. If you wait any later than that and your roses may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your roses indoors.

Last Frost Date

The average date of last frost is June 15 in Zone 1b. We should expect an average low temperature of -55°F in the coldest months of winter.

Since the USDA zone info for Zone 1b is an average our actual date of last frost changes from year to year. Since half of the time in Zone 1b last frost occurs after June 15 be ready to cover your roses if we have a late frost.

USDA Zone Info for Zone 1b

Here is the info for USDA Zone 1b.

Average Date of Last Frost (spring)June 15
Average Date of First Frost (fall)July 15
Lowest Expected Low-55°F
Highest Expected Low-50°F

This means that on a really cold year, the coldest it will get is -55°F. On most years you should be prepared to experience lows near -50°F.

Plants to Grow in Zone 1b

You may be interested in our other planting guides for Zone 1b.