Re: Re: forcing Siberians

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Hello,

Isn't the issue of force-blooming Siberians also an issue of the size of the plant?  In bearded iris you generally need 6 to 7 leaves to have the plant bloom. I currently have sibs in a window which began growth in early January no hint of blooming.
Botanically speaking, bloom is not an issue of abundant sunlight but the duration of the absence of light.

Bill Dougherty