Re: Bearded Irises

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Chill hours is what would be the "deal breaker" here. I am in the
southern part of the 420-540 chill hours zone on this map.
http://justfruitsandexotics.com/IFASChillMap.jpg

Mark A. Cook

On 2/5/2016 1:07 PM, Chuck Chapman irischapman@aim.com [iris-species] wrote:
> Maturity is measured as number of mature leaves. You may need to count 'leaf rings' on rhizome to get total. Usually in 10-15 leaves.
>
> Bud set temperature seems to be in range of 15-21C minimum temperature for 5-6 days in a row.
>
> Vernalization should be around 720 chill hours. Some cultivars are as low as 460.
>
>
> Chuck Chapman

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Mark A. Cook
AHS Region 12 USDA Zone 8b
Dunnellon, Florida USA