Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

One way of getting a good idea when it's the best time to plant jerusalem artichokes is to consult the USDA zone info for Hewitt.

Planting Calendar for Jerusalem artichokes

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

Jerusalem artichokes do ok in some cold which tells us that you can plant them a little earlier in the year than more sensitive plants.

The earliest that you can plant jerusalem artichokes in Hewitt 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. If you wait any later than that and your jerusalem artichokes may not have a chance to fully mature. You can get started a little bit earlier by starting your jerusalem artichokes indoors.

Last Frost Date

The average date of last frost is March 15 in Hewitt. You should expect an average low temperature of 15°F in the coldest months of winter.

Since the USDA zone info for Hewitt may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Half of the time in Hewitt it frosts late in the year after March 15 so always be ready to protect your jerusalem artichokes in the event of a surprise late frost.

USDA Zone Info for Hewitt

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°F

This means that on a really cold year, the coldest it will get is 15°F. On most years you should be prepared to experience lows near 20°F.

Plants to Grow in Hewitt

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