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

In Eureka you can determine when you can plant rudbeckia by reviewing the USDA zone info.

Planting Calendar for Rudbeckia

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

Rudbeckia can survive in mild cold which means that you can plant them a little earlier in the year than other frost tender plants.

The earliest that you can plant rudbeckia in Eureka 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 rudbeckia and expect a good harvest is probably October. You probably don't want to wait any later than that or else your rudbeckia may not have a chance to really do well. Starting your rudbeckia indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is February 15 in Eureka. You can expect an average low temperature of 25°F in the coldest months of winter.

Remember that USDA zone info for Eureka is just an average and the actual date of last frost changes from year to year. Half of the time in Eureka you get surprised by a frost after February 15 so just be sure to be ready to cover your rudbeckia in the event of a late frost.

USDA Zone Info for Eureka

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Eureka

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