When can I plant Rudbeckia in Zone 8b

One of the best tools that we have as gardeners to help us estimate our gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for our area.

A way of determining when it's possible to plant rudbeckia is to consult the USDA zone info for Zone 8b.


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 are one of those plants that can tolerate a little bit of cold weather which means that you can get them planted earlier 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 8b 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 fully mature. You can get started a little bit earlier by starting your rudbeckia indoors.

Last Frost Date

On average all chance of frost has passed is on March 15 in Zone 8b. It might get as low as 15°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Zone 8b may not be accurate from year to year and our actual date of last frost is different every year. Since half of the time in Zone 8b we get surprised by a frost after March 15 be ready to protect your rudbeckia in the event of a late frost.

USDA Zone Info for Zone 8b

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 Low15°F
Highest Expected Low20°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 Zone 8b

You may be interested in our other planting guides for Zone 8b.