One of the first steps you take when you are getting a good idea 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.

You should be able to estimate when it's a good idea to plant anchusa by using the USDA zone info for Anaheim.

Planting Calendar for Anchusa

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

Since anchusa do well in cold you can plant them earlier in the year than more sensitive plants.

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

Last Frost Date

The average date of last frost is January 31 in Anaheim. It might get as low as 35°F during the coldest months of winter.

Always keep in mind that USDA zone info for Anaheim is not always accurate and the actual date of last frost changes from year to year. Half of the time in Anaheim you get surprised by a frost after January 31 so make sure that you are prepared to cover your anchusa if you have a late frost.

USDA Zone Info for Anaheim

Here is the info for USDA Zone 10b.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	35°F
Highest Expected Low	40°F

This means that on a really cold year, the coldest it will get is 35°F. On most years you should be prepared to experience lows near 40°F.

Plants to Grow in Anaheim

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