Trillium 2014

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RickR
Title: Moderator
Joined: 2009-09-21
Trillium 2014

While googling hypogeal germination, I found this page.  It's very detailed, and all about trillium growth.

  More than most will every want to know........

 

http://www.trilliumresearch.org/your_trillium_studies/ys_01_john_gyer.htm

 

 

Tony Willis
Title: Guest
Joined: 2011-02-01

Rick

a really interesting article,a bit over my head but well worth reading.

One summer I got some damp stored seed from Kristl Walek of Trillium grandiflorum and sowed it on receipt. It was kept damp and germinated the following spring.No double dormancy.

I also collected some unripe green pods of Trillium ovatum and the seed inside was white and squishy,quite undeveloped. It germinated like the proverbial cress the following spring.

It would seem with a little effort and luck we can in unnatural conditions short cut nature.

Gryboski
Title: Member
Joined: 2010-11-20

John Gyer spoke at the Tri-state meeting hosted by Hudson Valley Chptr in October, 2008.  He basically said that everything going on during the first 4 to 6 months of the germination process is happening underground, no light necessary.  At this point seed needs to be chilled for 45 days.  The chilling switches it into a photomorphogenic (?) stage and it then needs light to start the above ground growth process.  He claims that if Trillium seed is harvested while immature it is in active growth and will thus germinate more easily whereas mature seed enters a sort of dormancy.  Immature harvested seed can cut time to flowering by 1 to 2 years.

His presentation was very good and his slides were great - some drop dead gorgeous shots of various species.  Great speaker idea.

 

Maryanne Gryboski

Cockcroft
Title: Member
Joined: 2010-01-27

The trilliums have been in bloom for about a month.  The hot weather of the last few days has taken a toll but many still look very nice.

Trillium chloropetalum  Trillium cuneatum   Trillium pusillum

   Trillium kurabayashii   Trillium albidum

    

Claire Cockcroft
Bellevue, Washington Zone 7-8

Cockcroft
Title: Member
Joined: 2010-01-27

I meant to post pictures of Pseudotrillium rivale last month and can't find a post, so I must not have.  Here is a selection of forms that I grow.

Pseudotrillium rivale 'Purple Heart'   Pseudotrillium rivale, a pink form   Pseudotrillium rivale

Pseudotrillium rivale   and a little one from Betty Lowry called 'Bird's Beak' Pseudotrillium rivale 'Bird's Beak'

Claire Cockcroft
Bellevue, Washington Zone 7-8

Hoy
Hoy's picture
Title: Member
Joined: 2009-12-15

Very nice, Claire! Do they grow in a kind of woodland?

Trond
Rogaland, Norway - with cool, often rainy summers  (29C max) and mild, often rainy winters (180 cm/year)!

Cockcroft
Title: Member
Joined: 2010-01-27

They grow all over my garden.  Some T. rivale live in pots on the north side of my house on a sand bed, so I can keep the strains separate and collect seed.  But all other trilliums are in the ground.  I'd say most enjoy shade for at least part of the day, but many get quite a bit of sun.  They are mixed in with other plants.

Claire Cockcroft
Bellevue, Washington Zone 7-8

Cockcroft
Title: Member
Joined: 2010-01-27

Trillium grandiflorum, in a double form, with Calanthe sieboldii.  This particular double trillium increases readily and blooms reliably.

Trillium grandiflorum and Calanthe sieboldii

Claire Cockcroft
Bellevue, Washington Zone 7-8

Cockcroft
Title: Member
Joined: 2010-01-27

One last post: Trillium hybrids, the result of crosses with T. sulcatum, flexipes, and erectum.

Trillium hybrid   Trillium hybrid   Trillium hybrid

Claire Cockcroft
Bellevue, Washington Zone 7-8

Longma
Longma's picture
Title: Guest
Joined: 2012-11-19

I think you posted them here Claire,?

https://www.nargs.org/comment/25346#comment-25346

 

53.69° N, Dedicated to West Coast Fritillaria, plus three other members of the subgenus Liliorhiza. I grow other Genera, as time permits !

Cockcroft
Title: Member
Joined: 2010-01-27

Thanks, Ron, for finding it.  I'm not going crazy after all!  smiley  Or maybe not getting any crazier than usual.

The SEARCH feature didn't bring it up.  Not such a great tool.

Claire Cockcroft
Bellevue, Washington Zone 7-8

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