Iris color

Paul T.
Sat, 02 Feb 2013 22:53:25 PST
At 08:28 AM 3/02/2013, you wrote:
>Thanks, that sounds like the most probable answer. I'll follow up with her
>next Wednesday.
>On Feb 2, 2013 1:21 PM, <> wrote:
> > I imagine she hasn't divided them for years.  What happens is they get
> > pollinated, she doesn't remove the seed pods, the pods pop open and spill
> > all

Howdy Karl,

If I can offer an alternative..... assuming we're 
talking bearde irises...... the chances of all 
the seedlings being exactly the same yellow if it 
was seedlings is almost impossible.  There would 
be variation.  For them all to standardise to a 
single colour by seedlings would take a LOT of 
years, like decades I would assume?

To me the simplest answer if she hasn't divided 
them up is that the yellow is the strongest 
grower and has outcompeted the others, so it is 
the only one that flowers now.  The others may 
still be there, but starved enough by the 
competition that they no longer flower?

If she has been dividing them then she has 
probably been saving the biggest and healthiest 
rhizomes for replanting, which have all been the 
yellow variety, so she has slowly weeded out the 
other colours over time.  Either of these options 
I think is far more likely than seedlings ending 
up replacing all the originals, unless there are 
an awful lot of years involved between the 
colours and now the yellow dominating?

What do others think?


Paul T.
Canberra, Australia - USDA Zone Equivalent approx. 8/9
Min winter temp -8 or -9°C. Max summer temp 40°C. 
Thankfully, maybe once or twice a year only.

Growing an eclectic collection of plants from all 
over the world including Aroids, Crocus, 
Cyclamen, Erythroniums, Fritillarias, Galanthus, 
Terrestrial Orchids, Irises, Liliums, Trilliums 
(to name but a few) and just about anything else that doesn't move!! 

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