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 first chance to plant jerusalem artichokes in Richmond should be estimated 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 bit earlier in the year because they are one of those plants that can tolerate a little bit of cold weather.

The earliest that you can plant jerusalem artichokes in Richmond is January. However, you really should wait until February 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 October. If you wait any later than that and your jerusalem artichokes may not have a chance to grow to maturity. You can get started a little bit earlier by starting your jerusalem artichokes indoors.

Last Frost Date

On average all chance of frost has passed is on January 31 in Richmond. In the coldest months of winter you should expect an average low temperature of 30°F.

Since the USDA zone info for Richmond is just an average the actual date of last frost changes from year to year. Half of the time in Richmond last frost occurs after January 31 so just be sure to be ready to protect your jerusalem artichokes in the event of a late frost.

USDA Zone Info for Richmond

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°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 35°F.

Plants to Grow in Richmond

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