Trillium 2010

[Afloden]

Here are a few sessile Trillium

 T. cuneatum yellow - from a population that is about 60% + yellow flowered plants and they are also short growing.
 T. underwoodii
 T. cuneatum double
 T. luteum Giant - see the Hydrastis below, Tiarella in front, P. obovataXmairei to the left, and Cardiocrinum to the right.
 T. oostingii

[Anthony Darby]

Aaron, the pic labels associated with the first two pics are cuneatum. I assume this is wrong? I have decumbens, but it is the normal reddish colour. So far the blackbirds haven't torn the leaves. They sometimes rip them to shreds trying to "turn them over" looking for beasties like they do fallen leaves.

[Regelian]

According to Case and Case, T. kurabayashii can have petals between 55-110mm long.  This is  quite variable.

Dark forms of T. chloropetalum have often been confused with T. kurabayashii.  They both have a purple ovary, but the first blooms about a month before the later in the wilds, which may help seperating them at a glance, although garden climate may place them closer together.

[Afloden]

Anthony,

 
 Yes, cuneatum - corrected now. Should not post so early before waking up completely! Just imagine a population of 60% yellow decumbens!
 
 Aaron

[Maggi Young]

Anthony,

 
 Yes, cuneatum - corrected now. Should not post so early before waking up completely! Just imagine a population of 60% yellow decumbens!
 
 Aaron

But, of course.... I did just that.... been hyperventilating ever since..... Ian is lying down in a darkened room 

[Lesley Cox]

At a talk I heard a couple of years ago, it was stated that an absolutely infallible ID for T. luteum, out of flower, was the central leaf stripe, but as your pic Aaron, of T. underwoodii has that stripe, I assume the information was wrong?

[Afloden]

 I'll get together some photos of the other sessile Trillium from the eastern US that all have central stripes. In my experience, T. luteum has a 50% cover of silver maculation over green - only two colors. Besides that it always has a lemon scent to it. T. cuneatum in areas where the two overlap can sometimes have a lemon fragrance also, but is usually brown and has cuneate petals. The area just north of me is almost a continuous hybrid zone of the two species.

 A quick perusal of my photographs and plants in the garden shows reliquum, decipiens, underwoodii, maculatum, cuneatum, sessile, foetidissimum, ludovicianum, gracile, discolor, and a single T. luteum with a silver central stripe!

 Aaron

[TheOnionMan]

Aaron, the double T. cuneatum is very COOL.  I have just one 3-yr seedling of T. underwoodii from John's collected seed, seeing that nice clump, it'll be worth the wait to have it flower one day.

The Trillium are coming on strong, many just starting to peek color at the tips of the buds.  Just ran outside and snapped a few pics:

1.  T. reliquum (center) in two forms, with center leaf stripe,  leaves of T. nivale on the left, T. decumbens on the right.

2.  T. decumbens, two forms.  T. lancifolium on the right, and seedlings.

3.  T. grandiflorum Multiplex (or Flore Pleno) - this clump now has over 50 stems, of which about 34 are flowering (some small budded stems are concealed by foliage).  I'd like to dig and divide it, but I fear I will not be able to extract it from the base of Magnolia 'Forrests Pink' that it is growing under.

4.  T. rugelii - also growing right next to the Magnolia trunk, about 20+ stems now, but at least this one produces seedlings.
5.  T. rugelii - taken in 2006, showing the large, thick-textured nodding recurved flowers with waxy purple-red ovary and stamens.
     I really like this one.  Flowering amidst Epiemdium x 'Amanogawa' (E. acuminatum x dolichostemon).
6.  T. rugelii - seedlings among a sea of non-flowering Erythronium americanum.
7.  T. gracile - Aaron, I think I have it in too dry a spot, is it found in moist conditions?  Finally a bud.
8.  T. foetidissimum budded up, foliage marbling is variable, thanks Aaron.

[Lesley Cox]

Aaron, Mark and pehaps others who really KNOW your trilliums - as opposed to the likes of me who really dosen't - it would be great if, in coming days or weeks you could show some comparative pictures of TT. rugellii and cernuum and point out the differences. I've had what is supposed to be the latter for some years but it looks exactly like everyone else's rugellii, and plants sold under both names here appear to be identical.

[johnw]

Trillium erectum has finally decided to settle in after a move last autumn.

johnw

[WimB]

Michael & Mark,

I've always loved T. decumbens. It's a shame they are impossible to come by around here and I've heard they are almost impossible to grow here too.
How do you grow them?

[WimB]

Forgot to post this pic,

one of three groups of T. rivale flowering here now (which were all very kindly given to me by a friendly forumnist).

[TheOnionMan]

Michael & Mark,

I've always loved T. decumbens. It's a shame they are impossible to come by around here and I've heard they are almost impossible to grow here too.
How do you grow them?

Mine are growing on a slope under a Magnolia tree, in our native rocky clay soil amended with well-decomposed pine bark mulch.  T. decumbers rarely offsets, or takes a very long time, it took 8 years for mine to to offset.  I also have some seedlings coming along, just a few, into their third year; will probably need to wait at least 2-3 more years to see a bloom.  The seed was not my own, as with my plants I either missed the seed (when I was working in the past) or it is not as free with seed as are some other Trillium species. 

[Regelian]

OK, here are the first Trillium I've ever bloomed.  I am very happay.  Both I received last Summer from Göte and they have done extremely well.  I received other plants later in the season, as is the typical shipping time for Trillium, and none of these has come up, although I assume they are still there, only resting a year.  For me, this is a clear statement from the plants, they want to be transplanted right after going dormant, not later in the Autumn.

The first plant is currently call a T. erectum, as it seems to fit this süpecies best, although it was apparently purchased under another name.  It is an album, although there is a tinge of red on the petal tips.

The second is simply T. grandiflorum, which makes me very happy just looking at it.  Man, simple pleasures!  Now I need to get the rosea and pleno forms.

Göte, a huge thank you!
I'll post the T. luteum and the T. flexipes hybrid in a few days, as they are fully open.

[annew]

Just catching up on this thread - some superb plants! Would growers of T nivale please advise me on suitable growing conditions?