When can I plant Jerusalem artichokes in Zone 7b

One of the best tools that we have as gardeners to help us determine our 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 our area.

One way of getting a good idea when to plant jerusalem artichokes is to refer to the USDA zone info for Zone 7b.


Planting Calendar for Jerusalem artichokes

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

Since jerusalem artichokes do well in moderate cold 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 7b is February. However, you really should wait until March 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 September. Any later than that and your jerusalem artichokes may not have a chance to grow to maturity. Starting your jerusalem artichokes indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Zone 7b the average date of last frost happens on April 15. In the coldest months of winter we should expect an average low temperature of 5°F.

Always keep in mind that USDA zone info for Zone 7b is just an average and our actual date of last frost can change quite a bit from year to year. Half of the time in Zone 7b we get a frost after April 15 so make sure that you are ready to cover your jerusalem artichokes if we have a surprise late frost.

USDA Zone Info for Zone 7b

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low5°F
Highest Expected Low10°F

This means that on a really cold year, the coldest it will get is 5°F. On most years you should be prepared to experience lows near 10°F.

Plants to Grow in Zone 7b

You may be interested in our other planting guides for Zone 7b.