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

By referring to the USDA zone info for Pleasant Hill you should be able to determine when it's a good idea to 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 earlier in the year because they do well in moderate cold.

The earliest that you can plant rudbeckia in Pleasant Hill 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. Any later than that and your rudbeckia may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your rudbeckia indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Pleasant Hill. In the coldest months of winter you should expect an average low temperature of -15°F.

Since the USDA zone info for Pleasant Hill is not always accurate the actual date of last frost can change quite a bit from year to year. Since half of the time in Pleasant Hill you get surprised by a frost after April 15 be ready to protect your rudbeckia in the event of one of those late frosts.

USDA Zone Info for Pleasant Hill

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°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 -10°F.

Plants to Grow in Pleasant Hill

You may be interested in your other planting guides for Pleasant Hill.