|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
|Answer from NGA
September 7, 2010
|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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