The USDA Zone info is a great tool for gardeners to help us determine 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.

In Marana you can figure out when you can plant flowering kale by using the USDA zone info.

Planting Calendar for Flowering Kale

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

You can plant flowering kale a bit earlier in the year because they do well in moderate cold.

The earliest that you can plant flowering kale 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 flowering kale and expect a good harvest is probably October. Any later than that and your flowering kale may not have a chance to really do well. You can get started a couple of weeks earlier by starting your flowering kale indoors.

Last Frost Date

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

Just be sure to remember that USDA zone info for Marana is an average and the actual date of last frost will vary from year to year. Since half of the time in Marana there is a last frost after February 15 be ready to cover your flowering kale if you have a surprise late frost.

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.