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May 21, 2021 7:57 AM CST
Name: Paul
Rochester NY (Zone 6a)
I've started growing my semps in plastic half-barrel tubs that are about 15" wide across the top and about 10" deep. I've never had good results growing in plastic, so my semps were in 6" and 8" clay pots. I was keeping 2 or 3 pots of each cultivar and was getting inundated with the many pots and the constant dividing and repotting. I started experimenting with these big tubs about 4 years ago. I drilled lots of extra drainage holes in the bottoms and grew on my surplus pups in them and have had very good results, winter and summer. So beginning last fall I've started moving my collection into these tubs...3 cultivars per tub and no duplicates in other pots. I'm hopeful this will be easier and so far the plants love it.

I don't know why these tubs have been more successful than smaller plastic pots I've tried, but my theory is that the larger volume of soil allows a good well-drained soil column to form. Any other thoughts?

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May 21, 2021 8:07 AM CST
Name: № №
Your local refrigerator (Zone 7a)
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The temperature flucuates less in the large containers.
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May 21, 2021 11:38 AM CST
Name: Bev
Salem OR (Zone 8a)
Container Gardener Foliage Fan Sempervivums Photo Contest Winner: 2014 Garden Ideas: Master Level
Congrats Paul on finding the "right" containers for your collection. Just wondering...Did you change any part of your soil mixture when you switched? I see that the pot in the foreground is most beautiful, really filled up and one of your fuzzy semps is sprouting offsets like crazy. Will you be separating and repotting that one?
Avatar for dulcimore11
May 21, 2021 1:02 PM CST
Name: Paul
Rochester NY (Zone 6a)
I'm just using the same potting mix I use in the clay pots. Its about 50% inorganics (usually pea gravel or crushed gravel) which makes the tubs too heavy to carry any distance, though. That's one downside of the new containers.

The pot in the foreground is one of the ones I first experimented with. This will be its third season. I just filled the pot with a lot of surplus pups and let them root and grow. Then I watched them to see how they'd do through the seasons. I've enjoyed watching them fill out the planter, but this year I'll divide them up and put them in smaller pots to use as give-aways to friends. I gift out a lot of my surplus plants every year. Semps are so prolific, and I can't bear to throw the extras away.
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May 22, 2021 1:21 AM CST
Name: Jo Ann
Washington State (Zone 7a)
Sempervivums
Semps require more depth of soil than most people think. Those are looking good.
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May 22, 2021 1:32 PM CST
Name: Bev
Salem OR (Zone 8a)
Container Gardener Foliage Fan Sempervivums Photo Contest Winner: 2014 Garden Ideas: Master Level
Good to send out goodwill semps, Paul. We had a term in our Semp dictionary for that goodwill gesture...hmm, can't find it in the current version but I think it was something like Sempster, a person who is like Johnny Appleseed, spreading semps around.
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May 30, 2021 10:08 AM CST
North Richland Hills, TX (Zone 8a)
I have the same results in south. Semps in wood pots have better survival rate than any location. Soil mix is mostly pine bark dust, grit sand and some rock dust. Wood pot also provide some mobility when there is too much sun or rain. Here is a pot that has seen all 4 seasons. They are about 18 months old. By the way, I started treating semps as winter interest and annual in Texas.

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May 30, 2021 11:18 AM CST
Name: Bev
Salem OR (Zone 8a)
Container Gardener Foliage Fan Sempervivums Photo Contest Winner: 2014 Garden Ideas: Master Level
I really like the filled in semp planting. Looks healthy and happy in the wood box nodding
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May 30, 2021 3:08 PM CST
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Name: Lynn
Oregon City, OR (Zone 8b)
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Ridvan, they really do look happy in that wooden box. Very nice.
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