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Author Topic: Trillium grandiflorum ?  (Read 1906 times)

Véronique Macrelle

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Trillium grandiflorum ?
« on: December 20, 2018, 05:47:27 PM »
it's been several years since I tried to sow the genus Trillium, without success.
this year, i even ordered hybrid trillium seeds at srgc hoping it would be easier wherever there are more seeds in the bag, as well as GA 3. I think that if it does not germinate this spring, I give up ...


this grows in a seed pot of trillium grandiflorum: would finally be a germination of the good plant after 2 or 3 years?

« Last Edit: December 20, 2018, 06:01:48 PM by Maggi Young »

Maggi Young

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Re: Trillium grandiflorum ?
« Reply #1 on: December 20, 2018, 06:15:51 PM »
Could be!  I hope so!
Margaret Young in Aberdeen, North East Scotland Zone 7 -ish!


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Mariette

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Re: Trillium grandiflorum ?
« Reply #2 on: December 20, 2018, 06:40:08 PM »
So do I! Most of my trillium were grown from seed - some germinated after the first winter, others after 2 or 3 years. If the first leaf looks like a green spear, You´ve been most likely successful.

Herman Mylemans

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Re: Trillium grandiflorum ?
« Reply #3 on: December 21, 2018, 09:42:58 AM »
The key is always to have fresh seeds and sow them immediately. When they have had a dry transport, I always put some water in the seed bag for 24 hours on room temperature. I also sow them about 3 cm deep, mostly the first year the germination go down and the second year one leave comes up. When there is a year with more cold and warm periods alternating, you can see sometimes a leave after one year. Trillium-L is a way to get fresh seeds.   
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Ian Y

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Re: Trillium grandiflorum ?
« Reply #4 on: December 21, 2018, 01:37:57 PM »
Many Trilliums have a two stage germination - first they produce a growth underground that will become the rhizome they then require further periods of fluctuating temperatures before the first seed leaf appears so it is the norm for it to take two years before you see any growth.
As mentioned previously and depending on when it is sown dry stored seed may need a whole year before the first phase starts and never throw out the seed pots as I have had Trillium seed germinate after more than five years.

The rewards of growing them from seed are well worth the wait.
« Last Edit: December 21, 2018, 02:20:00 PM by Ian Y »
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Gabriela

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Re: Trillium grandiflorum ?
« Reply #5 on: December 21, 2018, 09:09:32 PM »
it's been several years since I tried to sow the genus Trillium, without success.
this year, i even ordered hybrid trillium seeds at srgc hoping it would be easier wherever there are more seeds in the bag, as well as GA 3. I think that if it does not germinate this spring, I give up ...

this grows in a seed pot of trillium grandiflorum: would finally be a germination of the good plant after 2 or 3 years?

Like Maggi said, could be! Speaking of T. grandiflorum, whose seeds are almost 100% hydrophilic, this would be a great success. Many other Trillium species can germinate after few years from dry seeds but grandiflorum rarely does so. In any case I hope you get more than 1 seedling!
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Gabriela
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Véronique Macrelle

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Re: Trillium grandiflorum ?
« Reply #6 on: December 22, 2018, 06:56:42 AM »
 I did not know about T. grandiflorum! it's almost the species that I ordered most often because I really wanted it ....
 
 are there Trillium species that germinate more easily than others?

 if we have to wait 5 years for germination, then 5 years for the first flower .. I would be grandmother the day I see it!

What beautiful pictures of a very enviable success, Gabriella !

Leena

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Re: Trillium grandiflorum ?
« Reply #7 on: December 22, 2018, 08:38:33 AM »
are there Trillium species that germinate more easily than others?

For me T.chloropetalum and T.erectum have germinated also from dry seed exchange seeds after two years, T.rivale germinates from dry seeds in one year, but it hasn't been hardy for me and I've lost all my seedlings during winters.
Leena from south of Finland

Steve Garvie

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Re: Trillium grandiflorum ?
« Reply #8 on: December 22, 2018, 08:46:39 AM »
(Pseudo)Trillium rivale is probably the easiest species from seed here. Fresh seed sown at capsule dehiscence reliably produces strong seedlings the following Spring and flowering plants within 3 years. It grows well in a trough in a cool location (north side of a wall) but can be swamped in the open garden. It’s a bonny wee thing that comes in a few different flavours including vanilla and crushed raspberry sorbet.  ;)





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Leena

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Re: Trillium grandiflorum ?
« Reply #9 on: December 22, 2018, 08:54:03 AM »
They are so pretty, Steve! :)
Leena from south of Finland

Véronique Macrelle

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Re: Trillium grandiflorum ?
« Reply #10 on: December 22, 2018, 10:20:24 AM »
I should have asked this question before my choice in the srgc seeds exchange ...

very pretty Trillium rivale

Steve Garvie

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Re: Trillium grandiflorum ?
« Reply #11 on: December 22, 2018, 10:58:30 AM »
Many thanks Leena and Véronique.
Hopefully I will have some fresh seed in June/July and perhaps some young plants -please feel free to remind me.  ;)
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Leena

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Re: Trillium grandiflorum ?
« Reply #12 on: December 22, 2018, 12:20:27 PM »
Thank you Steve, I would love to try it again from seeds, and now I will keep it protected until it is mature, Maybe my previous plants were too young to plant outside to your sometimes very cold conditions. :)
Leena from south of Finland

Véronique Macrelle

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Re: Trillium grandiflorum ?
« Reply #13 on: December 22, 2018, 01:05:22 PM »
thank you Steve
I'll try to think about it in June

Gabriela

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Re: Trillium grandiflorum ?
« Reply #14 on: December 22, 2018, 04:30:27 PM »
I did not know about T. grandiflorum! it's almost the species that I ordered most often because I really wanted it ....
 are there Trillium species that germinate more easily than others?
 if we have to wait 5 years for germination, then 5 years for the first flower .. I would be grandmother the day I see it!
What beautiful pictures of a very enviable success, Gabriella !

This is the reason I don't donate T. grandiflorum to the seeds exchanges. I just think the frustration of trying again and again species that won't germinate it's not good for the reputation of that species.
People stop trying it after that no matter if fresh/moist seeds are available.

Speaking of which, as you know well, plenty of seeds are available in early fall; one just needs to ask :)
Gabriela
Ontario, zone 5
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