Forced Dormancy Question

From: "Allan Tetzlaff" <atetzlaff at rogers.com> on 2007.01.07 at 17:28:58(15054) I have bulbs of Typhonium venosum and I keep them in the fridge during the winter so they don't start growing too soon in the spring (the suggestion of the woman I purchased them from). I was wondering if anyone has experience with any of the Amorphophallus species in using this type of method to shift the growing season? Eg. My A. haematospadix always grow during the winter and rest during the summer. Though they're not big, they do take up space.... same issue for paeoniifolius which are currently getting large. If they grow outside in the summer that solves a few important issues. Any tips would be appreciated. I'm not concerned about konjac as it seems to match our season fairly well. Thanks, Allan Tetzlaff +More _______________________________________________ Aroid-l mailing list Aroid-l@gizmoworks.com http://www.gizmoworks.com/mailman/listinfo/aroid-l

From: "Agoston Janos" <agoston.janos at citromail.hu> on 2007.01.07 at 18:23:01(15059) I think you can put them in a fridge to keep them cool. There is a botanic garden not far from us, and they have A. +More konjac. It emerged there in august and they keep them in greenhouse in the winter time, but my one is dormant in winter and grows in summer. So you may try it, but you may keep some offspring uncooled if anything would happen to the cooled tubers... ----- Original Message ----- From: Allan Tetzlaff To: Discussion of aroids Sent: Sunday, January 07, 2007 6:28 PM Subject: [Aroid-l] Forced Dormancy Question I have bulbs of Typhonium venosum and I keep them in the fridge during the winter so they don't start growing too soon in the spring (the suggestion of the woman I purchased them from). I was wondering if anyone has experience with any of the Amorphophallus species in using this type of method to shift the growing season? Eg. My A. haematospadix always grow during the winter and rest during the summer. Though they're not big, they do take up space.... same issue for paeoniifolius which are currently getting large. If they grow outside in the summer that solves a few important issues. Any tips would be appreciated. I'm not concerned about konjac as it seems to match our season fairly well. Thanks, Allan Tetzlaff _______________________________________________Aroid-l mailing listAroid-l@gizmoworks.comhttp://www.gizmoworks.com/mailman/listinfo/aroid-l _______________________________________________ Aroid-l mailing list Aroid-l@gizmoworks.com http://www.gizmoworks.com/mailman/listinfo/aroid-l

From: Steve Marak <samarak at gizmoworks.com> on 2007.01.08 at 02:30:15(15066) Allan, I haven't seen much response to your note, so here's a few comments. I have an interest in this, too, since my indoor growing space is limited and dormant things take up much less room. Typhonium venosum (a.k.a. Sauromatum venosum and probably a dozen other things) is quite hardy - I've grown it only outdoors here in NW Arkansas for many years, even back when we had cold winters (-25 C or below) with no problems. It flowers and sets seed every year. If you're not in a really brutally cold area, you might consider the outdoor option. As to Amorphs, I keep konjac outdoors, too, and although it took several years, it finally did synch up with our seasons and seems perfectly acclimated. I've had what I can only call very limited success trying to persuade other Amorphs to change their dormancies for me. Most seem to go dormant and break dormancy whenever they please, without regard to the seasons outside. I've never been willing to risk Amorphs in the refrigerator - rightly or wrongly, I've gotten the impression that many will rot if they get very cool - but I do keep them coolish (12-15 C), and as dry as the individual species will permit. The only positive results I've had, in fact, seem to be those that will tolerate being unpotted and kept completely dry with no soil at all. At some point, even those decide they're just going to start growing again, soil or not, but I have gradually gotten some pushed around the calender a little. Steve +More On Sun, 7 Jan 2007, Allan Tetzlaff wrote: > I have bulbs of Typhonium venosum and I keep them in the fridge during the > winter so they don't start growing too soon in the spring (the suggestion of > the woman I purchased them from). I was wondering if anyone has experience > with any of the Amorphophallus species in using this type of method to shift > the growing season? Eg. My A. haematospadix always grow during the winter > and rest during the summer. Though they're not big, they do take up > space.... same issue for paeoniifolius which are currently getting large. > If they grow outside in the summer that solves a few important issues. Any > tips would be appreciated. I'm not concerned about konjac as it seems to > match our season fairly well. > > Thanks, > Allan Tetzlaff -- Steve Marak -- samarak@gizmoworks.com _______________________________________________ Aroid-l mailing list Aroid-l@gizmoworks.com http://www.gizmoworks.com/mailman/listinfo/aroid-l

From: bonaventure at optonline.net on 2007.01.08 at 03:39:41(15067) My T. venosums, and also konjacs, are weeds here in the sandy subsoil of my coastal New Jersey, USA garden. Planted deep in the soil overlain by thick organic mulch, they flower in early May and are up in leaf towards the end of May. They never fail to spread by seeds or small offsets that make their way to the soil surface and are transported around. Bonaventure Magrys +More Cliffwood Beach, NJ----- Original Message -----From: Agoston Janos Date: Sunday, January 7, 2007 6:37 pmSubject: Re: [Aroid-l] Forced Dormancy QuestionTo: Discussion of aroids > I think you can put them in a fridge to keep them cool.> > There is a botanic garden not far from us, and they have A. > konjac. It emerged there in august and they keep them in > greenhouse in the winter time, but my one is dormant in winter > and grows in summer. So you may try it, but you may keep some > offspring uncooled if anything would happen to the cooled tubers...> ----- Original Message ----- > From: Allan Tetzlaff > To: Discussion of aroids > Sent: Sunday, January 07, 2007 6:28 PM> Subject: [Aroid-l] Forced Dormancy Question> > > I have bulbs of Typhonium venosum and I keep them in the > fridge during the winter so they don't start growing too soon in > the spring (the suggestion of the woman I purchased them from). > I was wondering if anyone has experience with any of the > Amorphophallus species in using this type of m ethod to shift the > growing season? Eg. My A. haematospadix always grow during the > winter and rest during the summer. Though they're not big, they > do take up space.... same issue for paeoniifolius which are > currently getting large. If they grow outside in the summer > that solves a few important issues. Any tips would be > appreciated. I'm not concerned about konjac as it seems to > match our season fairly well.> > Thanks,> Allan Tetzlaff> > > -----------------------------------------------------------------> -------------> > > _______________________________________________> Aroid-l mailing list> Aroid-l@gizmoworks.com> http://www.gizmoworks.com/mailman/listinfo/aroid-l> _______________________________________________ Aroid-l mailing list Aroid-l@gizmoworks.com http://www.gizmoworks.com/mailman/listinfo/aroid-l

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