When can I plant Rudbeckia in Zone 9b

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

The first opportunity to plant rudbeckia in Zone 9b can be estimated by reviewing the USDA zone info.


Planting Calendar for Rudbeckia

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

Rudbeckia do well in mild cold which means that you can plant them a little earlier in the year than plants that are more sensitive to the cold.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant rudbeckia
Possibly ok, but a risky time to plant rudbeckia
Probably not a good time to plant rudbeckia

The earliest that you can plant rudbeckia in Zone 9b 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. Any later than that and your rudbeckia may not have a chance to really do well. If you are starting your rudbeckia indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

In Zone 9b the average date of last frost happens on February 15. In the coldest months of winter we should expect an average low temperature of 25°F.

Since the USDA zone info for Zone 9b may not be accurate from year to year our actual date of last frost is different every year. Half of the time in Zone 9b it frosts late in the year after February 15 so make sure that you are ready to protect your rudbeckia in the event of a surprise late frost.

USDA Zone Info for Zone 9b

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 Low25°F
Highest Expected Low30°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 Zone 9b

You may be interested in our other planting guides for Zone 9b.