When to Plant Jerusalem artichokes in Sidney, MT

One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

It's a good idea to determine when it's the best time to plant jerusalem artichokes by referring to the USDA zone info for Sidney.


Planting Calendar for Jerusalem artichokes

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

You can plant jerusalem artichokes a little earlier in the year because they are moderately cold tolerant.

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 Sidney 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 jerusalem artichokes and expect a good harvest is probably August. Any later than that and your jerusalem artichokes may not have a chance to really do well. Starting your jerusalem artichokes indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is May 15 in Sidney. In the coldest months of winter you should expect an average low temperature of -30°F.

It's important to remember that USDA zone info for Sidney is an average and the actual date of last frost changes from year to year. Half of the time in Sidney you get surprised by a frost after May 15 so make sure that you are ready to cover your jerusalem artichokes in the event of a surprise late frost.

USDA Zone Info for Sidney

Here is the info for USDA Zone 4a.

Average Date of Last Frost (spring)May 15
Average Date of First Frost (fall)September 15
Lowest Expected Low-30°F
Highest Expected Low-25°F

This means that on a really cold year, the coldest it will get is -30°F. On most years you should be prepared to experience lows near -25°F.

Plants to Grow in Sidney

You may be interested in your other planting guides for Sidney.