When to Plant Jerusalem artichokes in Zone 1a

One of the best tools that you have as gardeners to help us figure out your 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 your area.

It's a good idea to estimate when it's a good idea to plant jerusalem artichokes by checking out the USDA zone info for Zone 1a.


Planting Calendar for Jerusalem artichokes

Frost tolerance for jerusalem artichokes: Tolerant of some frost.
When to plant: Up to 5 weeks before last frost.

Since jerusalem artichokes are one of those plants that can tolerate a little bit of cold weather you can plant them a little earlier in the year than other plants that might not handle the cold.

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

The earliest that you can plant jerusalem artichokes in Zone 1a 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 jerusalem artichokes and expect a good harvest is probably July. You probably don't want to wait any later than that or else your jerusalem artichokes may not have a chance to really do well. You can get started a few weeks earlier by starting your jerusalem artichokes indoors.

Last Frost Date

In Zone 1a the average date of last frost happens on June 15. You can expect an average low temperature of -60°F in the coldest months of winter.

Since the USDA zone info for Zone 1a is an average the actual date of last frost can change quite a bit from year to year. Since half of the time in Zone 1a last frost occurs after June 15 be ready to cover your jerusalem artichokes in the event of 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 your other planting guides for Zone 1a.