The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Marana you can estimate when you can plant jerusalem artichokes by reviewing 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.

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.

The earliest that you can plant jerusalem artichokes in Marana 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 few weeks earlier by starting your jerusalem artichokes indoors.

Last Frost Date

In Marana the average date of last frost happens on February 15. You can expect an average low temperature of 20°F in the coldest months of winter.

Since the USDA zone info for Marana may not be accurate from year to year the actual date of last frost is different every year. Since half of the time in Marana it frosts late in the year after February 15 be ready to protect your jerusalem artichokes in the event of one of those late frosts.

USDA Zone Info for Marana

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°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 25°F.

Plants to Grow in Marana

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