One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

It's possible to figure out when to plant decorative kale by checking out the USDA zone info for Rialto.

Planting Calendar for Decorative Kale

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

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

The earliest that you can plant decorative kale in Rialto 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 decorative kale and expect a good harvest is probably October. Any later than that and your decorative kale may not have a chance to fully mature. You can get started a few weeks earlier by starting your decorative kale indoors.

Last Frost Date

On average the last frost has passed is on January 31 in Rialto. You should expect an average low temperature of 30°F in the coldest months of winter.

Since the USDA zone info for Rialto may not be accurate from year to year the actual date of last frost will vary from year to year. Half of the time in Rialto last frost occurs after January 31 so make sure that you are ready to protect your decorative kale if you have a late frost.

USDA Zone Info for Rialto

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 Rialto

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