|
Post by martin on Apr 9, 2007 21:31:54 GMT -5
I have just succesfully germinated D. paradoxa and D. ordensis. If I'm lucky, D. broomensis & D. kenneallyi will germinate as well (all from Triffid Nurseries).
Does anyone here have grown some of these? I have read about them being harder than most Drosera because of the dry dormancy requirements. They thrive in tropical climates: plenty of sun, high temperatures and high humidity...
|
|
|
Post by lloyd on Apr 9, 2007 22:44:35 GMT -5
I just bought (seeds) D. paradoxa, derbyensis, broomensis & ordensis from Triffid Nurseries too, along with U. reniformis & petertaylorii and Genlisea hispidula. They're going to mail them tomorrow. Do you have any suggestions about germination? I was thinking of trying them in tissue culture.
By the way, does anybody have any ideas about germinating tuberous or pygmy sundews? I've heard that tuberous ones have to have high daytime and low night-time temperatures to germinate. Has anybody used gibberellic acid?
|
|
|
Post by martin on Apr 10, 2007 10:04:41 GMT -5
I treated the harder to germinate Drosera (D. regia, tuberous, petiolaris-complex, Drosophyllum) them with giberellic acid for 24h. The first ones to germinate did so 2 weeks after. I used the petri dish method that I described here: ocps.proboards78.com/index.cgi?action=display&board=indoor&thread=1172519177&page=1I know that the petiolaris-complex like high temperatures to trigger germination (303-35°C). I dont know what temperatures build up in the small petri dish, but I would think its higher than ambient because of the greenhouse effect inside it. Dont forget that tuberous Drosera are mainly winter-growing. I have started them in late winter so I hope they will not die if they will try to go into dormancy in summer.
|
|
|
Post by martin on Apr 11, 2007 18:58:24 GMT -5
Anyone?
Flytrap, didnt you have a D. falconeri?
|
|
|
Post by Flytrap on Apr 11, 2007 21:53:56 GMT -5
I had falconeri a long time ago... and can't remember what conditions I had it in. As for the tuberous Doseras, I found them more effort than they were worth I do remember giving my old tuberous droseras a rest period, their "dry season". If you ever get the chance, have a look at some of their tubers when they're dormant. Very pretty and colourful round pea size tubers ...sometimes bright red or orange - as in d auriculata and peltata.
|
|
|
Post by mabudon on Apr 12, 2007 7:53:23 GMT -5
I've never grown tuberous or petiolaris Drosera from seed, but I do have a couple of plants from tubers and have researched tuberous growing as much as possible, so I'll add what I know of them
Supposedly certain tuberous sundews aren't TOO picky about dormancy- D.gigantea and D.peltata come right to mind- they don't need to be absolutely dry during dormancy, and can often experience more than one growing season a year, basically popping up whenever they like, then going to sleep and returning whenever they choose,too.
I wouldn't worry too much about when they sprout, there's not much you can do at this point- my buddy says that you can grow them whenever you want, but TRY to keep them a tad cool and bright while growing, especially if it's HOT outside- you want to get them big enough to make litltle tubers, then go to sleep. Supposedly this is done a few times, each time trying to move the "growing season" closer to october-april, until after a year or two they should be adjusted
Of tha petiolaris complex, all's I know for certain is that D.paradoxa is the most forgiving, so you should expect the least trouble with that one- good luck on this!!
|
|
|
Post by martin on Apr 13, 2007 8:49:55 GMT -5
I wasnt sure is tubers could be grown anytime in the year. I guess its better to grow them towards their natural growing, like you said. I too agree that they need extra effort, but its the challenge that makes them interesting also!
I dream of seeing my D. ordensis seedlings mature to the hairy plants that they are!
|
|
|
Post by mabudon on Apr 13, 2007 8:57:20 GMT -5
It's just one of those things, I think- basically, it's easier to provide their "natural" conditions in our winter... I will have to wait a year or two before I can truly say that I've even begun to figure them out, though, but so far things seem on schedule... And yes, I tend to look a LOT at pics from the petiolaris complex- one of these days....
|
|