One of the best tools that you have as gardeners to help us estimate 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.

The earliest that you can plant jerusalem artichokes in Claremont can be figured out by checking out the USDA zone info.

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.

The earliest that you can plant jerusalem artichokes in Claremont 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 little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Claremont. It might get as low as -20°F during the coldest months of winter.

Since the USDA zone info for Claremont is not always accurate the actual date of last frost is different every year. Half of the time in Claremont you get surprised by a frost after April 15 so make sure that you are prepared to cover your jerusalem artichokes in the event of a late frost.

USDA Zone Info for Claremont

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°F

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

Plants to Grow in Claremont

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