Double Crocus
Last year I planted quite a few varieties of crocus in my lawn. I was intrigued when I found that quite a high proportion of E.P.Bowles were doubles. I researched this site and then the “rest” of the internet to find out more about this phenomenon. I found very little information
Fraser Henderson posted ”I have a single Crocus chrysanthus 'Zwanenburg Bronze' flower which has 11 petals”
On February 6th 2006 Thomas Huber wrote
“Many Crocus species tend to built flowers with more than 6 petals. I'm not sure about the cause, but I think it's a saisonal genetical mistake, which will not repeat next year and also seed will not produce double flowers.
I've often seen that in chrysanthus "Goldilocks" but the only permanent double flowering Crocus is chrysanthus "Goldmine"
And Tony Goode showed a picture of Crocus biflorus in the wild
http://www.srgc.org.uk/discus/messages/5012/23624.htmlTony Goode posted October 18th 2005 (replying to Mark Smyth about Autumn Crocus)
“Mark, it is just an occasional unstable occurrence connected with conditions at flower bud initiation time in early summer. The plant probably won't repeat the extra petalled performance next year.”
Thomas Huber wrote on October 19th 2005
“There is one form of Crocus chrysanthus called "Goldmine" offered by Janis.
This is the only permanent double Crocus that I know.
Chrysanthus "Goldilocks" often forms doubles, but not permanent, just for one season.”
From the internet
The Lithuanian Bulb Garden
http://members.fortunecity.com/ezhiukas/catalogue.htmStates Crocus chrysanthus GOLDMINE ” Up to now is the only double crocus. Brightest orange yellow flowers. Flowers early spring like earliest C. chrysanthus varieties.
Also
In C. tommasinianus there is one semi-double, 'Eric Smith', with a 4 x 4 arrangement, and the same occurs in some flowers of C. chrysanthus 'E.P. Bowles'. At one time there was a semi-double C. imperati, and Crispin van de Pas in his Hortus Floridus of 1615 illustrates a semi-double plants of(probably) C. biflorus and C. angustifolius. So semi-double Crocus areknown, but are unusual and certainly worth selecting.
http://lists.ibiblio.org/pipermail/pbs/2005-March/020908.htmlDr John M. Grimshaw
Garden Manager, Colesbourne Gardens
I am interested if anyone knows the “occasional unstable occurrence connected with conditions at flower bud initiation time in early summer.”
I am sure that the growers have tried to replicate the conditions, as no doubt this would be a viable commercial proposition, but as yet no one as far as I am aware has brought this to market.
Maybe it’s something else.
Anyone’s thoughts please.
Graeme Strachan
All photos taken this morning
******"THE DOUBLE EP BOWLES PHOTOS WERE SUBSEQUENTLY FOUND TO BE GOLDILOCKS"******

Graeme