Sempervivum and Jovibarba forum: What's your Arachnoideum strategy?

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Name: Tim Stoehr
Canby, Oregon (Zone 8b)
Sempervivums Region: Pacific Northwest Vegetable Grower Cactus and Succulents Sedums Bee Lover
Region: Oregon Dragonflies Keeper of Poultry Cat Lover Composter Apples
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tcstoehr
Aug 11, 2016 12:31 PM CST
I'm clueless about how to manage Arachnoideums. I love both the mounded form and the magic carpet look. But I'm a big wimp and get nervous when I see rosettes getting swallowed up. Won't they die and rot in there and cause issues???

Here's 'Pygmlian' that I just divided cuz I was nervous about the unsymmetical, lumpy heap it was growing into. The larger part that remains still makes me kinda nervous.
Thumb of 2016-08-11/tcstoehr/bd2941

How 'bout this guy? Can I just let it get bigger and bigger? Something's gotta give... right?
Won't it get wet an gooey inside there in the Winter?
Thumb of 2016-08-11/tcstoehr/07f867

Here's 'Martin 1' that I got earlier this year. I planted out the four rosettes I received and they've practically carpeted the area. Do I just let them keep on doing their own thing?
Thumb of 2016-08-11/tcstoehr/119200

And here's that infamous weed 'Fords Spring'. Every time I see it I have to resist the urge to pop its top off.
Thumb of 2016-08-11/tcstoehr/81dac7

What's your strategy?
[Last edited by tcstoehr - Aug 11, 2016 12:49 PM (+)]
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Name: Lynn
Dallas, 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
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valleylynn
Aug 11, 2016 1:54 PM CST

Moderator

Hi Tim. Love this new thread. Hurray!

I find that there are many forms of growth habit within the arachnoideum types. Some make beautiful mounds and seem to have no trouble with staying healthy, even in my very wet winters and spring. Some will even grow up and over walls/rocks. I love seeing them do that.
Other arachs seem happy to just keep spreading out like a carpet. Love this form also.
Then there are those that form a more lumpy, course mound. I'm not overly found of this form of growth, but it still has it charm. I think this type takes a little more work to keep the colony healthy.

I'll try to add some photos for examples.
Name: Paul
AV, southern California
Zone 8B/9A, Mojave Desert
Region: California
cahdg6891
Aug 11, 2016 2:25 PM CST
I just let them grow however they want to. Unless your soil can hold a lot of water or you get lots of rain with no time for drying out etc mounding won't hurt them, it's how many of them naturally grow. Matter of preference really Big Grin
Name: Greg Colucci
Seattle WA (Zone 8b)
Sempervivums Sedums Plant Lover: Loves 'em all! Cactus and Succulents Container Gardener Garden Ideas: Level 1
Garden Art Birds Dog Lover Cat Lover Region: Pacific Northwest Hummingbirder
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gg5
Aug 11, 2016 4:36 PM CST
I too like this thread and how nicely your plants are growing Tim. I agree with Paul it is preference.
Tim you and I have similar weather in the winter - very wet, so I do have to cover mine or they rot, I tried several different things but nothing else worked until I covered the whole area - this goes for all my semps though. I haven't found that they are any more prone to rot being mounded together or spaced, if you are getting enough rain/water they are going to begin to rot.
Your plants look great! Hurray!
Plants bring me peace and calm, more of what we all need Smiling
Name: Tim Stoehr
Canby, Oregon (Zone 8b)
Sempervivums Region: Pacific Northwest Vegetable Grower Cactus and Succulents Sedums Bee Lover
Region: Oregon Dragonflies Keeper of Poultry Cat Lover Composter Apples
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tcstoehr
Aug 11, 2016 8:00 PM CST
Dude... are you saying your Arachnoideums rot without rain protection? Regardless of arrangement? Crying I didn't have any Arachs rot last winter... but I only had a handful. I have more this year, and more congestion.

Hmmm... I think I need two things:

1) Knowledge of each cultivar's growing habit
2) Patience

I have neither. D'Oh! Consider the following two cases:

This one I planted hoping it would drape down on gossamer threads and adorn those rock faces. Epic fail 1.
Thumb of 2016-08-12/tcstoehr/33d278

This one I hoped would bunch up in that rock crevice. Instead this one made long thread-like stolons that I had to push back and stack on top of each other. Epic fail 2.
Thumb of 2016-08-12/tcstoehr/0cbece

I think I'll take the second one and put him where he can drape down a creviced rock face.
[Last edited by tcstoehr - Aug 11, 2016 8:04 PM (+)]
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Name: Greg Colucci
Seattle WA (Zone 8b)
Sempervivums Sedums Plant Lover: Loves 'em all! Cactus and Succulents Container Gardener Garden Ideas: Level 1
Garden Art Birds Dog Lover Cat Lover Region: Pacific Northwest Hummingbirder
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gg5
Aug 11, 2016 9:31 PM CST
Tim I'm just saying my experience, which was for all types of semps - including arachs. Your epic fail 2 wasn't really a fail, you just have to rearrange it! Then once they offset it'll fill in, this is where the patience comes in...or you could buy several of the same types to fill the space, I have done that.
Thumbs up
Plants bring me peace and calm, more of what we all need Smiling
Name: Kate
NEKingdom of Vermont (Zone 3a)
[url=www.LabourofLoveLandscaping.co
Charter ATP Member I was one of the first 300 contributors to the plant database! Plant and/or Seed Trader Sempervivums Tropicals Garden Ideas: Level 1
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LabourofLove
Aug 27, 2016 7:57 PM CST
I can't tell you what this arach's name is, but it sure does do the "waterfall thing" in a big way!

Thumb of 2016-08-28/LabourofLove/64ecc9

Kate Kennedy Butler
Glover, Vermont

life without music would be a mistake Nietzsche
Name: Connie
Willamette Valley OR (Zone 8a)
Forum moderator Hybridizer Region: Pacific Northwest Lilies Sempervivums Sedums
Pollen collector I was one of the first 300 contributors to the plant database! Plant Database Moderator Charter ATP Member Garden Ideas: Master Level Plant Identifier
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pardalinum
Aug 27, 2016 8:02 PM CST
Oh yeah! Spill and fill Lovey dubby !!
Name: Tim Stoehr
Canby, Oregon (Zone 8b)
Sempervivums Region: Pacific Northwest Vegetable Grower Cactus and Succulents Sedums Bee Lover
Region: Oregon Dragonflies Keeper of Poultry Cat Lover Composter Apples
Image
tcstoehr
Aug 27, 2016 9:19 PM CST
Holy cats' whiskers!
Name: Lynn
Dallas, 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 Celebrating Gardening: 2015 Plant and/or Seed Trader Garden Ideas: Master Level Sempervivums
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valleylynn
Aug 27, 2016 10:38 PM CST

Moderator

That is amazing Kate. Holy cat's whiskers, that really is spill and fill. Rolling on the floor laughing
Great responses Connie and Tim. Hurray!
Name: Connie
Willamette Valley OR (Zone 8a)
Forum moderator Hybridizer Region: Pacific Northwest Lilies Sempervivums Sedums
Pollen collector I was one of the first 300 contributors to the plant database! Plant Database Moderator Charter ATP Member Garden Ideas: Master Level Plant Identifier
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pardalinum
Aug 27, 2016 10:43 PM CST
That's what I need for my table garden. Too bad we don't know the name.
Name: Kate
NEKingdom of Vermont (Zone 3a)
[url=www.LabourofLoveLandscaping.co
Charter ATP Member I was one of the first 300 contributors to the plant database! Plant and/or Seed Trader Sempervivums Tropicals Garden Ideas: Level 1
Image
LabourofLove
Aug 28, 2016 6:06 PM CST
I have an entire raised bed of ±15 otherwise-named arachs but this one is the most prolific of them all - but I don't have the name.
Kate Kennedy Butler
Glover, Vermont

life without music would be a mistake Nietzsche

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