One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Camas should be used to determine when you can plant rudbeckia.

Planting Calendar for Rudbeckia

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

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

The earliest that you can plant rudbeckia in Camas is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant rudbeckia and expect a good harvest is probably September. If you wait any later than that and your rudbeckia may not have a chance to fully mature. If you are starting your rudbeckia indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

The average date of last frost is March 15 in Camas. In the coldest months of winter you should expect an average low temperature of 15°F.

Just be sure to remember that USDA zone info for Camas is just an average and the actual date of last frost is different every year. Since half of the time in Camas you get a frost after March 15 be ready to protect your rudbeckia in the event of a late frost.

USDA Zone Info for Camas

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°F

This means that on a really cold year, the coldest it will get is 15°F. On most years you should be prepared to experience lows near 20°F.

Plants to Grow in Camas

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