The Sempervivum Database, moderated by goldfinch4, valleylynn

We have 9,981 images of 2,234 sempervivum here.
New Comments:
Talking about Hen and Chicks (Sempervivum 'Streaker') on June 22, springcolor wrote:

Have had this plant for a few years and never noticed the coloration this time of year, streaked with pink on the leaves.
Talking about Hen and Chicks (Sempervivum 'Rubikon Improved') on February 22, Patty wrote:

Does not hold up well in winter rain.
Talking about Hen and Chicks (Sempervivum arachnoideum 'Cobweb Joy') on December 15, valleylynn wrote:

Quote from Kevin Vaughn.

JungleShadows said:'Cobweb Joy' is a sister to 'Denise's Cobweb' and 'Kanno's Cobweb' although it was not named by Patty. I'm not sure whether it was Helen or Shirley Rempel that named the plant for her. All 3 tend to produce thicker stolons and fewer increase than other cobwebs so the clumps are a bit more open. 'Denise's Cobweb' produces many fasciated rosettes and passes that trait onto its seedlings.
Talking about Hen and Chicks (Sempervivum arachnoideum 'Denise's Cobweb') on December 15, valleylynn wrote:

Quote from Kevin Vaughn.

JungleShadows said:'Cobweb Joy' is a sister to 'Denise's Cobweb' and 'Kanno's Cobweb' although it was not named by Patty. I'm not sure whether it was Helen or Shirley Rempel that named the plant for her. All 3 tend to produce thicker stolons and fewer increase than other cobwebs so the clumps are a bit more open. 'Denise's Cobweb' produces many fasciated rosettes and passes that trait onto its seedlings.
Talking about Hen and Chick (Sempervivum 'Kanno's Cobweb') on December 15, valleylynn wrote:

Quote from Kevin Vaughn.

JungleShadows said:'Cobweb Joy' is a sister to 'Denise's Cobweb' and 'Kanno's Cobweb' although it was not named by Patty. I'm not sure whether it was Helen or Shirley Rempel that named the plant for her. All 3 tend to produce thicker stolons and fewer increase than other cobwebs so the clumps are a bit more open. 'Denise's Cobweb' produces many fasciated rosettes and passes that trait onto its seedlings.
Talking about Hen and Chicks (Sempervivum 'Tamberlane') on December 15, valleylynn wrote:

Quote from Kevin Vaughn.

JungleShadows said:When Helen first listed 'Tamerlane' in 1977 it did not have a "b' in it but the Alpine Gardens of 1980 adds the b back into the name. It seems to be more commonly spelled with the additional b now. Patty made the cross of 'Sanford Hybrid' X montanum var. stiriacum to produce a coppery brown with velvet. Some of the seedlings from this cross were smooth and she wondered if some were contaminated by the bees. However, I think the cross is true. The flower colors are what one would expect from such a mating as well as the rosettes.
Talking about Hen and Chicks (Sempervivum 'Plumb Rose') on December 15, valleylynn wrote:

A quote from Kevin Vaughn.

JungleShadows said:Polly Bishop ONLY introduced 3 of her Sempervivum.
They were all introduced in the 1978 catalog of Betty Bronow (The Perennial Garden). 'Pink Lemonade' is a seedling of 'Magnificum'. The two dark ones were from a large lot of seedlings of 6 different dark Sempervivum. Polly took the blooming plants of each of these varieties and criss-crossed the flowering stalks so that the bees would cross these flowers in every direction. She gathered all the seed and 'Dark Cloud' and 'Plumb Rose' were selected out. Frankly there were a dozen other very fine ones that probably should have been named, especially some very dark ones.


Talking about Hen and Chicks (Sempervivum 'Dark Cloud') on December 15, valleylynn wrote:

A quote from Kevin Vaughn.

JungleShadows said:Polly Bishop ONLY introduced 3 of her Sempervivum.
They were all introduced in the 1978 catalog of Betty Bronow (The Perennial Garden). 'Pink Lemonade' is a seedling of 'Magnificum'. The two dark ones were from a large lot of seedlings of 6 different dark Sempervivum. Polly took the blooming plants of each of these varieties and criss-crossed the flowering stalks so that the bees would cross these flowers in every direction. She gathered all the seed and 'Dark Cloud' and 'Plumb Rose' were selected out. Frankly there were a dozen other very fine ones that probably should have been named, especially some very dark ones.


Talking about Hen and Chicks (Sempervivum 'Lowes 60') on November 24, valleylynn wrote:

JungleShadows said: Helen Payne lists a "Lowe's 60"/"Lown's 60" in her 1969 catalog but not afterwards.
"Beautiful medium-sized rosette, softly furred edges and tips".
It was not listed in subsequent lists and that may be because Bill had decided it was the same as 'Alpha'. Many of the plants that Helen received from Sandy MacPherson were actually seedlings of the variety and what Helen was selling was not Lown's 60/Lowe's 60. Maybe this should be annotated in the data base that "The original 'Lown's 60' was very similar if not identical to 'Alpha' and what is distributed as this cultivar now is likely a seedling of this plant."
Talking about Hen and Chick (Sempervivum tectorum 'Variegatum') on November 24, valleylynn wrote:

Sempervivum mettenianum f.variegata was sometimes used to designate tectorum x arachnoideum hybrids.

This very rare and unusual sempervivum possibly originated in Japan.
Laszlo Szakszon has some very nice looking rosettes that are offsetting. He will be growing them outdoors over the winter of 2014/2015. We look forward to seeing a report in the spring on how they do under normal growing conditions.
Talking about Hen and Chicks (Sempervivum 'Banjo') on November 1, valleylynn wrote:

A quote from Erwin Geiger's web site.
"Similar in growth habit to Sempervivum heuffelii: The red-violet rosettes are truly an unusual form.."
Talking about Hen and Chicks (Sempervivum 'Oh My') on October 30, valleylynn wrote:

This is a quote from Plant Delights Nursery, Inc. 9241 Sauls Road, Raleigh, NC 27603
They know what summer heat and humidity is.
Sempervivum 'Oh My' is one of our favorites for the rock garden...not to mention one of the best survivors in our heat and humidity trials. The large 5" rosettes of Sempervivum 'Oh My' are brilliant reddish-brown and form a compact 12" wide offsetting patch in 5 years. Good drainage is important with all hen and chickens. - See more at: http://www.plantdelights.com/Sempervivum-Oh-My-for-sale/Buy-...
Talking about Hen and Chicks (Sempervivum 'Plastic') on October 16, valleylynn wrote:

'Plastic' has proved to be a strong-growing sempervivum that stays healthy year round, in drought and in months of heavy rain.
I also found out that the bloom's size is a bit larger than many semp blooms, and the petals of the bloom are rather thick and tough feeling, almost like plastic.
Talking about Hen and Chicks (Sempervivum 'Rubikon') on October 14, valleylynn wrote:

There seems to be some confusion between S. 'Rubikon' and S. 'Rubikon Improved'.
The written description for S. 'Rubikon' is: apple green - dark red rosettes, ciliate, tips reddish, flat slower growth, sensitive to winter wet.
I'm not sure we have this cultivar correct.
Talking about Hen and Chicks (Sempervivum 'Jungle Fires') on September 30, valleylynn wrote:

JungleShadows said: 'Jungle Shadows' was rather unique when it was born and I still find it a very pleasing semp. Visitors to my garden have really enjoyed it. It is also proving to be a very interesting parent as well. I raised a large crop from both hand crosses and bee set seed when I was in MA and 'Jungle Fires' came out of the bee seed.
The list published on the Slovenian site is mostly right although they have credited Shirley Rempel with 'Jungle Fires'. She did introduce it for me but it is definitely my hybrid.
Talking about Hen and Chicks (Sempervivum 'Gloriosum') on September 30, valleylynn wrote:

JungleShadows said: There were two reds that were circulated from Malby. The one that was Latinized to his name I knew was a misuse of this and Sanford did the same with one of his. What I used back then was also called "Malby's #2", which you say has been renamed 'Gloriosum'. It was one of the few that retained its color a bit longer. I don't remember it being a bicolor, more of a solid red, at least in spring in MA. All of the seedlings in the cross to 'Olivette' were bi-colors, most with the wider, flatter form. 'Stuffed Olive' was the only one with the more "olive-formed" rosette, so it got the nod as an introduction.

Kevin Vaughn
Talking about Hen & Chicks (Sempervivum 'Atroviolaceum Pubescent') on September 15, valleylynn wrote:

JungleShadows said:Lynn,

I know this was discussed several pages ago but I can tell you that 'Atroviolaceum' was NOT hybridized by Mina Colvin. This was one that was found way back in Correvon's or Sanford's collection. The Heimlich form was from Heimlich's Nursery in Woburn, MA, probably some time in the early 60's. Mina's first two introductions were 'Raspberry Ice' and 'Silver Thaw'.

It is unfortunate that there were so many things with the 'Atroviolaceum' tag. It would have been better to call the Heimlich plant just 'Heimlich'. The two look quite different.

All of these should be pure tectorums so the one with pubescence sounds like a hybrid with montanum, not a pure tectorum.

OK my two cents!

Kevin
Talking about Hen and Chicks (Sempervivum tectorum 'Atroviolaceum') on September 15, valleylynn wrote:

JungleShadows said:Lynn,

I know this was discussed several pages ago but I can tell you that 'Atroviolaceum' was NOT hybridized by Mina Colvin. This was one that was found way back in Correvon's or Sanford's collection. The Heimlich form was from Heimlich's Nursery in Woburn, MA, probably some time in the early 60's. Mina's first two introductions were 'Raspberry Ice' and 'Silver Thaw'.

It is unfortunate that there were so many things with the 'Atroviolaceum' tag. It would have been better to call the Heimlich plant just 'Heimlich'. The two look quite different.

All of these should be pure tectorums so the one with pubescence sounds like a hybrid with montanum, not a pure tectorum.

OK my two cents!

Kevin
Talking about Hen and Chicks (Sempervivum 'Atroviolaceum Heimlich 2') on September 15, valleylynn wrote:

JungleShadows said:Lynn,

I know this was discussed several pages ago but I can tell you that 'Atroviolaceum' was NOT hybridized by Mina Colvin. This was one that was found way back in Correvon's or Sanford's collection. The Heimlich form was from Heimlich's Nursery in Woburn, MA, probably some time in the early 60's. Mina's first two introductions were 'Raspberry Ice' and 'Silver Thaw'.

It is unfortunate that there were so many things with the 'Atroviolaceum' tag. It would ha e been better to call the Heimlich plant just 'Heimlich'. The two look quite different.

All of these should be pure tectorums so the one with pubescence sounds like a hybrid with montanum, not a pure tectorum.

OK my two cents!

Kevin
Talking about Hen and Chicks (Sempervivum 'Oddity') on September 11, valleylynn wrote:

Oddity would make a great addition to a miniature garden, by using a single rosette as maybe a shrub? Let your imagination decide how you might use it in your miniature garden.

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