Seeds forum: Comastoma seed germination?

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Name: Caroline Scott
Calgary (Zone 4a)
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CarolineScott
Dec 26, 2014 10:11 PM CST
What does one do if you only know the genus?
There are about 20 species listed in the database, but no information on germination. I only know the seeds are from the Himalayas--Nepal, collected at 4000 meters and the plant was 8 cm tall.
Searching tells me it is in the Gentian family--so would you do a winter sow?
[Last edited by CarolineScott - Dec 26, 2014 10:13 PM (+)]
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Name: Anne
Summerville, SC (Zone 8a)
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Xeramtheum
Dec 26, 2014 10:41 PM CST
Comastoma is in the gentian family. According to Thompson & Morgan, Gentian wants a minimum of 2 months cold stratification and darkness in Lime free medium. Barely cover the seeds and keep medium in the low to mid 70° F. Expect irregular germination and can take anywhere from 14 to 120 days.

I think winter sowing would probably work well.
"Twenty years from now you will be more disappointed by the things that you didn’t do than by the ones you did do, so throw off the bowlines, sail away from safe harbor, catch the trade winds in your sails. Explore, Dream, Discover."

Mark Twain
Name: Caroline Scott
Calgary (Zone 4a)
Charter ATP Member Region: Canadian Bulbs Winter Sowing Enjoys or suffers cold winters Lilies
Peonies Plant Lover: Loves 'em all! Garden Ideas: Master Level
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CarolineScott
Dec 27, 2014 9:08 AM CST
I am thinking I will try sowing onto moist vermiculite,
and place them out in the unheated garage.
I wonder which species was the T and M directions for?
Name: Anne
Summerville, SC (Zone 8a)
Only dead fish go with the flow!
Plant and/or Seed Trader Enjoys or suffers hot summers Hybridizer Birds Seed Starter Cat Lover
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Xeramtheum
Dec 27, 2014 9:14 AM CST
The listing just says Gentiana - no species info.
"Twenty years from now you will be more disappointed by the things that you didn’t do than by the ones you did do, so throw off the bowlines, sail away from safe harbor, catch the trade winds in your sails. Explore, Dream, Discover."

Mark Twain
Name: Caroline Scott
Calgary (Zone 4a)
Charter ATP Member Region: Canadian Bulbs Winter Sowing Enjoys or suffers cold winters Lilies
Peonies Plant Lover: Loves 'em all! Garden Ideas: Master Level
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CarolineScott
Dec 27, 2014 9:18 AM CST
The good Dr. Deno has data for several gentians,
and they all seem to require different conditions.
Name: Anne
Summerville, SC (Zone 8a)
Only dead fish go with the flow!
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Xeramtheum
Dec 27, 2014 9:28 AM CST
Hmm .. well that's not good. T & M Seed Germination Database is old, but it has served me well.

http://www.backyardgardener.co...
"Twenty years from now you will be more disappointed by the things that you didn’t do than by the ones you did do, so throw off the bowlines, sail away from safe harbor, catch the trade winds in your sails. Explore, Dream, Discover."

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Name: Karen
Cincinnati, Oh (Zone 6a)
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kqcrna
Dec 27, 2014 12:40 PM CST

Moderator

Thanks for that, Anne. I had saved that database for a long time but lost it over the years.

Karen
Name: Anne
Summerville, SC (Zone 8a)
Only dead fish go with the flow!
Plant and/or Seed Trader Enjoys or suffers hot summers Hybridizer Birds Seed Starter Cat Lover
Pollen collector Moon Gardener Hibiscus Greenhouse Dragonflies Garden Ideas: Master Level
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Xeramtheum
Dec 27, 2014 12:58 PM CST
Karen I have merged it into a Word File that can be printed. If you want a copy of the file, let me know.
"Twenty years from now you will be more disappointed by the things that you didn’t do than by the ones you did do, so throw off the bowlines, sail away from safe harbor, catch the trade winds in your sails. Explore, Dream, Discover."

Mark Twain
Name: Rick R.
near Minneapolis, MN zone 4a
I was one of the first 300 contributors to the plant database! Garden Sages The WITWIT Badge Garden Photography Region: Minnesota Plant Identifier
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Leftwood
Dec 27, 2014 6:58 PM CST
Take into consideration that it is an annual, if the species originally came from China. Is it Comastoma falcatum?
Name: Caroline Scott
Calgary (Zone 4a)
Charter ATP Member Region: Canadian Bulbs Winter Sowing Enjoys or suffers cold winters Lilies
Peonies Plant Lover: Loves 'em all! Garden Ideas: Master Level
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CarolineScott
Dec 27, 2014 8:26 PM CST
Cane from Nepal, I think.
Name: Caroline Scott
Calgary (Zone 4a)
Charter ATP Member Region: Canadian Bulbs Winter Sowing Enjoys or suffers cold winters Lilies
Peonies Plant Lover: Loves 'em all! Garden Ideas: Master Level
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CarolineScott
Dec 28, 2014 9:39 AM CST
Somebody else also said they were annuals,--- so then
should not be all that difficult to germinate?
Maybe start warm for a few weeks,--- then if no germination ---
move to cool location.
Name: Rick R.
near Minneapolis, MN zone 4a
I was one of the first 300 contributors to the plant database! Garden Sages The WITWIT Badge Garden Photography Region: Minnesota Plant Identifier
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Leftwood
Dec 28, 2014 12:39 PM CST
Honest, Lori and I came up with the "annuals" comment independently.

>>>they were annuals-so then should not be all that difficult to germinate?
One wouldn't think so, but even impatiens species can be stubborn, I have found. A species that Trond Hoy sent me didn't come up until the second season. My best guess for germinating would be the same as yours. If no germination at 18-21C (65-70F), then a cool location at 10-13C (50-55F). If still no germination, then a cold treatment around 4C (40F) for 2-4wks, then 10-13C, then 18-21C.

If it is an alpine species, whenever it germinates, I would try to grow it on at 10-15C (50-60F) if I am able.

Let us know what happens, here and on NARGS.
[Last edited by Leftwood - Jan 1, 2015 12:00 AM (+)]
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Name: Caroline Scott
Calgary (Zone 4a)
Charter ATP Member Region: Canadian Bulbs Winter Sowing Enjoys or suffers cold winters Lilies
Peonies Plant Lover: Loves 'em all! Garden Ideas: Master Level
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CarolineScott
Dec 31, 2014 8:28 PM CST
Yes, I will carry out my germination experiments on these seeds,
and then make sure to report my findings.
Quite likely, it is alpine as the information given is collected at 4000 m and height 8 cm
I like your idea of a gradual temperature change down to cold.

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