When can I plant Bells of Ireland in Zone 1a

Before planting it is a good idea to find our USDA Zone info to figure out our garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for our area.

The earliest that you can plant bells of ireland in Zone 1a should be figured out by reviewing the USDA zone info.


Planting Calendar for Bells of Ireland

Frost tolerance for bells of ireland: Tolerant of a very small amount of frost.
When you should plant them: Up to 3 weeks before last frost.

You can plant bells of ireland slightly earlier in the year because they are barely cold tolerant.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant bells of ireland
Possibly ok, but a risky time to plant bells of ireland
Probably not a good time to plant bells of ireland

The earliest that you can plant bells of ireland in Zone 1a is June. However, you really should wait until July if you don't want to take any chances.

The last month that you can plant bells of ireland and expect a good harvest is probably July. If you wait any later than that and your bells of ireland may not have a chance to grow to maturity. If you are starting your bells of ireland indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average the last frost has passed is on June 15 in Zone 1a. It might get as low as -60°F during the coldest months of winter.

Since the USDA zone info for Zone 1a is an average our actual date of last frost will vary from year to year. Half of the time in Zone 1a we get a frost after June 15 so be sure to be ready to cover your bells of ireland if we have a late frost.

USDA Zone Info for Zone 1a

Here is the info for USDA Zone 1a.

Average Date of Last Frost (spring)June 15
Average Date of First Frost (fall)July 15
Lowest Expected Low-60°F
Highest Expected Low-55°F

This means that on a really cold year, the coldest it will get is -60°F. On most years you should be prepared to experience lows near -55°F.

Plants to Grow in Zone 1a

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