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.

The USDA zone info for Glendale should be looked at to determine when you can plant fennel.

Planting Calendar for Fennel

Frost tolerance for fennel:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Since fennel are very cold tolerant you can plant them a lot earlier in the year than more sensitive plants.

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

Last Frost Date

On average the last frost when the weather gets warmer is on January 31 in Glendale. It might get as low as 30°F during the coldest months of winter.

Remember that the actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Glendale and it is different every year. Half of the time in Glendale last frost occurs after January 31 so make sure that you are ready to protect your fennel in the event of one of those late frosts.

USDA Zone Info for Glendale

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 Glendale

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