The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A common way of estimating when it's possible to plant artichokes is to refer to the USDA zone info for Cupertino.

Planting Calendar for Artichokes

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

Since artichokes are one of those plants that can tolerate a little bit of cold weather you can plant them a little bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant artichokes in Cupertino 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 artichokes and expect a good harvest is probably October. You probably don't want to wait any later than that or else your artichokes may not have a chance to really do well. Starting your artichokes indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average all chance of frost has passed is on February 15 in Cupertino. In the coldest months of winter you can expect an average low temperature of 25°F.

Keep in mind that USDA zone info for Cupertino is not always accurate and the actual date of last frost will vary from year to year. Half of the time in Cupertino it frosts late in the year after February 15 so make sure that you are ready to cover your artichokes in the event of a surprise late frost.

USDA Zone Info for Cupertino

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

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

Plants to Grow in Cupertino

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