dutch irises and daffodils - Knowledgebase Question

Montclair, Ca
Question by lisguevara
September 7, 2010
Do dutch irises and daffodils need a chill period? I read somewhere that they didn't, but a HomeDepot expert said they did. I'm confused. Please help. Thank you


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Answer from NGA
September 7, 2010

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The most current research recommends at least a 12 week chilling period for daffodils. While they will bloom without it, the flowers will be smaller and the bulbs will not be as long-lived. The same is true for Dutch Irises. For the most spectacular showing, I'd heed the recommendations of the professionals who did the research.

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