Sempervivum

[Lori S.]

Lori, you grow Sedum acre... in the garden?  That, and S. sexangulare are unwelcome weeds here!  I do grow a variegated form of S. acre, but only in a trough where I can keep a close watch on it. 

Errr, yes, I guess so... I have assumed that it's Sedum acre but I haven't really paid any attention to it.  Does it look like S. acre to you?  It does get similar yellow flowers, sparingly.  It doesn't have the sexangularity ( ) of S. sexangulare.  If it is S. acre, I guess the lousy soil and dry conditions are enough to keep it in check, as it has not spread rampantly in the >10 years it's been there.   

[cohan]

Exquisite, Cohan!  If you ever get seed...
My allionii have never produced a flower yet, in the seven years I have grown them.

Lori, you grow Sedum acre... in the garden?  That, and S. sexangulare are unwelcome weeds here!  I do grow a variegated form of S. acre, but only in a trough where I can keep a close watch on it. 

Sempervivum flowers can be so similar, but they are so cute!

                    Sempervivum 'Bronco'

               *INCORRECT USE OF [attachthumb=#]. You need to specify the attachment number, for example [attachthumb=1].

I have some bits of what I presume to be S acre that came in a mixed pot of small sedums, still in some small pots sunk for winter, and in my big mixed pot... no spreading so far (only a couple of years).. no flowering either... we'll see what happens in the ground... winters may be enough to keep it under control...

The Jovis are still small, and that allioni does not seem very fast, so time will tell about flowers... lots of the semps from the same plantings (2009) are flowering this year, and I agree they are cute, I like the pinks best, but have a full covering of yellow on ciliosum--you can't see the plants without peeking under!

[RickR]

I am no sedum expert, but Lori, yours does look like it.  Although, I wouldn't be surprised if there are easily mistakable imposters.  Sedum acre flowers prolifically here.  Maybe it is just your climate...

[cohan]

here is the Rosularia (Prometheum) Lori was asking about.. I've grown it outdoors here--in a pot, sunk for winter, as beds have not been ready-- since summer 2009.. so it has dealt with two winters so far; 2009 had late warm weather, followed by an abrupt plunge to -20C (pots were not yet sunk), then wet, then as usual a cold snow-covered mid-wnter; lows to around -40C once or twice...
Last year, lasting snow cover came early -mid-nov-and very heavy and stayed late-parts of this garden were out of snow by mid-April, off and on;
The Rosularia has been unphased by these winters, and looks completely healthy when the snow goes..
First shot from May 01, second from yesterday; Prometheum aizoon

   

[Lori S.]

That plant is looking very good, Cohan.

More sempervivum flowers...
'Ruby Heart':


And Jovibarba hirta:
 

[RickR]

Some additions from me, too...

                    Jovibarba heuffelii and Sempervivum 'Bronco'
               


                    Sempervivum arachnoideum 'Minus'
               


 April 29th shot of Sempervivum 'Robin' and S. arachnoideum 'Minus'
               

[cohan]

Lori, I know they aren't grown for the flowers, but I find them quite charming! They are putting on a good show here this year--most of my plants are still smallish, but I guess a lot of them reached maturity this year...
Rick--great colour especially on the April shots..nice big clumps, too..
A locally purchased S arachnoideum tomentosum.. when I bought this, I was sceptical about it being arach: the rosettes were large and open, and not that wooly--obviously grown in a greenhouse or some much milder climate (B.C.?) a couple years here they are small and tight as they should be...(more so in this overcrowded nursery pot.. I do find rosettes are much larger when first planted with lots of room.. no surprise, I guess..)



S x fimbriatum (behind) and S cv Rhodenicum in front;    overview of the named semp nursery pot, with names..

 

[cohan]

Some views of unnamed semps in nursery pot, some Sedum in background...

[Lori S.]

Very nice trough photo, Rick.

Cohan, you have a very nice tapestry of colours going there too.

[RickR]

You've got a lot of flowering going on this year, Cohan!  I also find the cobweb type hen and chicks to be variable, depending on the time of year and care.  If you notice, even though my April pic of S. arachnoideum 'Minus' and the blooming shot are different plants, the habits are typical for the time of season here.

Speaking of tapestry, here's some nice "quilt work" from early May.  You can easily pick out the two Sempervivum octopodes.

              


And a nice form of Sempervivum calcareum

              

[cohan]

Thanks, Lori-- they are a lot of fun, and don't mind this cold wet year at all Really need to get some division going in that crowded pot, though-- a couple small ones are disappearing!
Rick, I'm planning to put most of mine in the ground, but there's something about semps that look great in pots, so I think I will always keep some that way for fun, even though its a hassle with needing to be sunk for winter.. Nice calcareum! Def lots of flowering this year.. probably just old enough for those grown from small offsets in 2009 (just a couple of those flowered last year) and the arach tomentosum from local purchase seems to flower yearly, though we'll see what it does after so many stems this year...
Overall, they seem to enjoy the cool wet weather we've mostly had last couple of years, though I have one or two-- S altum notably, that don't seem to be thriving, and I wonder if they'd like to be drier/hotter--may try one in a small extra gritty pot...

[Lori S.]

This was said to be Sempervivum 'Excalibur'... it seems to fit the description below with respect to the offsets being on long stolons, at any rate (though not the colour description):
http://stalikez.info/fsm/semp/site/dwnld/ssj/ssj6_2.pdf


Sempervivum thompsonianum:


Sempervivum 'Zulu':

[Hoy]

You have some nice collection of semps, all of you! When I started collecting semps, the first was Sempervivum tectorum which my grandma grew on the roof of the "jordkjeller" (= a small storehouse for vegetables, potatoes etc built into the ground and with soil on the roof). I didn't know that many species existed!

[Lori S.]

Speaking of tapestry, here's some nice "quilt work" from early May.  You can easily pick out the two Sempervivum octopodes.

So are those offsets from your garden potted up for your NARGS chapter sales or...  ? 

[RickR]

So are those offsets from your garden potted up for your NARGS chapter sales or...  ? 

Yes, they were for the Chapter sale in early June.  And then I accidentally left that whole flat at home the day of the sale!  But it really wasn't missed.  My pick up was filled with plants bound for the sale anyway.

Is there anything of particular note with S. thompsonianum?