Rudbeckia -- Annual or Perennial? - Knowledgebase Question

Findlay, OH
Question by Grohoske
August 23, 1998
I live in Zone 5 and want to know if 'Indian Summer' rudbeckia is a perennial or not. I've found seed packets that say it's an annual and some that say it's a perennial.


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Answer from NGA
August 23, 1998

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Indian Summer rudbeckia (Rudbeckia hirta) will bloom all summer if you keep the spent blooms removed. It is generally treated as an annual in zones 4-9 (this is where the confusion lies -- most other Rudbeckia's are perennial in these zones.) You can expect that it won't come back the following spring -- and if it does, you can be pleasantly surprised.

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