Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By looking at the USDA zone info for San Leandro it's a good idea to figure out when you can plant flowering kale.

Planting Calendar for Flowering Kale

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

Since flowering kale 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 flowering kale in San Leandro 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. If you wait any later than that and your flowering kale may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your flowering kale indoors.

Last Frost Date

In San Leandro the average date of last frost happens on January 31. In the coldest months of winter you can expect an average low temperature of 30°F.

Just be sure to remember that USDA zone info for San Leandro is an average and the actual date of last frost can change quite a bit from year to year. Half of the time in San Leandro last frost occurs after January 31 so make sure that you are prepared to cover your flowering kale if you have a surprise late frost.

USDA Zone Info for San Leandro

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 San Leandro

You may be interested in your other planting guides for San Leandro.