Sempervivum forum→Can you tell me which cultivar this one I just bought is? - No I can't!

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Name: Serkan
Canberra, Australia
Sep 8, 2020 7:55 PM CST
So Sempervivums are not as popular or well known here in Australia as it is in USA or Europe; which is something that I am trying to change a little if I can. Hence we get a lot of posts in various succulent Facebook groups people asking to get their plants identified.

Helpful well meaning people who have a few Semps always reply back and say it is 'X' or "it looks like my X'. Without coming across rude when I notice those sort of posts I always write back to say it is impossible to identify cultivars correctly when the label is lost. Try to tell them about the thousands of cultivars being available (even though cultivars available in Australia are in the hundreds) and depending on the growing conditions and the season the plants looking different.

I made the following two photos to illustrate what I mean. What do you think of them? I am hoping to do a few more similar comparisons when I have the opportunity as the plants change over time.

The below photos were all taken on the same day

Thumb of 2020-09-09/KillieOrCory/083042
Two arachnoideum types growing about a meter apart in an exposed location

Thumb of 2020-09-09/KillieOrCory/b56c02
Same arachnoideum growing in two different locations; one exposed to the elements and the other in a protected location with a bit more water.

[Last edited by KillieOrCory - Sep 8, 2020 7:58 PM (+)]
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Name: Kevin Vaughn
Salem OR (Zone 8a)
Sep 8, 2020 8:30 PM CST
The cobwebs are so alike it's nearly impossible. Even within the straight species there's a range of sizes, amount of cobweb and amount of red.

Just enjoy them!

Name: Lynn
Oregon City, OR (Zone 8b)
Charter ATP Member Garden Sages I helped plan and beta test the plant database. I helped beta test the Garden Planting Calendar I was one of the first 300 contributors to the plant database! Plant Database Moderator
Forum moderator I helped beta test the first seed swap Million Pollinator Garden Challenge Celebrating Gardening: 2015 Plant and/or Seed Trader Garden Ideas: Master Level
Sep 10, 2020 11:50 AM CST


I agree with Kevin, to many that look so similar, then you ad in the differences that growing conditions can make.

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