When can I plant Rhubarb in Zone 2b

The USDA Zone info is a great tool for gardeners to help us figure out our gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for our area.

By checking out the USDA zone info for Zone 2b you will be able to estimate when it's possible to plant rhubarb.


Planting Calendar for Rhubarb

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

Rhubarb can survive in a little bit of cold which means that you can plant them a little bit earlier in the year than other frost tender plants.

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

The earliest that you can plant rhubarb in Zone 2b is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant rhubarb and expect a good harvest is probably August. Any later than that and your rhubarb may not have a chance to grow to maturity. You can get started a little bit earlier by starting your rhubarb indoors.

Last Frost Date

In Zone 2b the average date of last frost happens on May 15. We should expect an average low temperature of -45°F in the coldest months of winter.

Since the USDA zone info for Zone 2b is just an average our actual date of last frost will vary from year to year. Since half of the time in Zone 2b it frosts late in the year after May 15 be ready to cover your rhubarb in the event of one of those late frosts.

USDA Zone Info for Zone 2b

Here is the info for USDA Zone 2b.

Average Date of Last Frost (spring)May 15
Average Date of First Frost (fall)August 15
Lowest Expected Low-45°F
Highest Expected Low-40°F

This means that on a really cold year, the coldest it will get is -45°F. On most years you should be prepared to experience lows near -40°F.

Plants to Grow in Zone 2b

You may be interested in our other planting guides for Zone 2b.