Coleus forum: Coleus seeds

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Name: Liz Shaw
Gilbert, AZ (Sunset Zone 13) (Zone 9a)
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LizDTM
May 30, 2017 10:20 PM CST
I picked up some coleus seeds on sale. I'm wondering if I can start them in a terrarium and grow them there successfully.
And the day came when the risk to remain tight in a bud was more painful than the risk it took to blossom. -Anaïs Nin
Name: Caroline Scott
Calgary (Zone 4a)
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CarolineScott
Jun 2, 2017 7:34 AM CST
That would probably work, but some how you need good drainage.
Name: Liz Shaw
Gilbert, AZ (Sunset Zone 13) (Zone 9a)
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LizDTM
Jun 3, 2017 12:19 AM CST
Would an inch layer of aquarium gravel work?
And the day came when the risk to remain tight in a bud was more painful than the risk it took to blossom. -Anaïs Nin
Name: Jai or Jack
WV (Zone 6b)
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Jai_Ganesha
Jun 3, 2017 3:40 AM CST
In my experience, it's difficult but maybe not impossible. I had a really big enclosed terrarium (about the size of a 10 gallon fish tank) in which I had about 3" of gravel but the coleus needed more water than could successfully circulate back and forth (or up and down) in that environment. My coleus plants (cuttings which had rooted) all wilted or got some kind of fungal infection after a few weeks.
Keep going!
Name: Allison
NJ (Zone 6a)
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Onewish1
Jun 3, 2017 4:26 AM CST

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They do love warm circulation.. put a computer fan in it Hilarious!
Name: Jai or Jack
WV (Zone 6b)
Om shanti om.
Container Gardener Region: West Virginia Multi-Region Gardener Garden Photography Amaryllis Zinnias
Gardens in Buckets Annuals Houseplants Plant and/or Seed Trader Birds Garden Ideas: Level 1
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Jai_Ganesha
Jun 3, 2017 4:27 AM CST
Onewish1 said:They do love warm circulation.. put a computer fan in it Hilarious!


I wonder if this wouldn't actually increase fungal infection because it wouldn't keep it dry (it needs to be warm and moist like you said) but would instead more easily spread the spores around. *shrug*
Keep going!
Name: Allison
NJ (Zone 6a)
Forum moderator Charter ATP Member I was one of the first 300 contributors to the plant database! Garden Ideas: Level 1 Container Gardener Seed Starter
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Onewish1
Jun 3, 2017 4:39 AM CST

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It was sort of a joke.. we build Halloween props and Christmas lights galore.. my brain will just go there.. my apologies
Name: Gary
Wyoming MN (Zone 4a)
hostasmore
Jun 3, 2017 9:07 AM CST
The air movement actually helps prevent fungal spores from settling. Any large terrarium should have some means of air circulation. In greenhouses cool damp night air is what causes the development of botrytis problems.
Name: Jai or Jack
WV (Zone 6b)
Om shanti om.
Container Gardener Region: West Virginia Multi-Region Gardener Garden Photography Amaryllis Zinnias
Gardens in Buckets Annuals Houseplants Plant and/or Seed Trader Birds Garden Ideas: Level 1
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Jai_Ganesha
Jun 3, 2017 9:11 AM CST
There are closed, self-contained, plant containers (not sure of the boundary of definitions for "terrarium") which have been unopened for decades and continue to grow. So having airflow in or out is not actually necessary, and can sometimes do more harm.

It depends on what you were growing, how, and what microbes/viruses/spores are already present.
Keep going!

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