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  #1  
Old 05-21-2022, 03:43 PM
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PuiPuiMolcar PuiPuiMolcar is offline
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Default Long lasting and hassle free Orchid media?

I've shopped a lot of orchid over the past weeks, and last I've hauled probably more than 10. Then my head started to imagining the the repotting hell I will be facing in the next two years.

That's why I've been looking for alternative media outside of my usual bark and moss set up.

So far I have seen people use lava rock, leca, and charcoal. Beside leca, I rarely see people detailing the "after" effect of growing in those media after several years.

seeking for guidance from the forum, if there are more option out there please let me kow.

Last edited by PuiPuiMolcar; 05-21-2022 at 03:47 PM..
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  #2  
Old 05-21-2022, 04:28 PM
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estación seca estación seca is offline
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There is nothing hassle free.

Healthy sympodial orchids typically outgrow an appropriately-sized pot within 2-3 years. Many monopodials will make so many roots in the same time frame they benefit from repotting. So you generally should repot before any medium breakdown. Choice of medium doesn't really affect this.

If most orchids aren't outgrowing their containers that quickly try to figure out how to improve growing conditions.

Organic media break down into smaller pieces that obliterate air spaces. LECA, charcoal, pumice, perlite and cinders don't, but they may accumulate salts if the water has a high dissolved mineral content, or if the grower doesn't regularly water plentifully to wash out the minerals.

I use mostly LECA because I'm still working, which means I don't always have time to repot as soon as I notice medium becoming old.

The most important consideration in choosing medium is how to give your orchids lots of water while preserving good air flow at the roots. That depends on a lot of factors: They kinds of orchids you're growing, ambient temperatures and humidity, how you water and fertilize, how much time you have to deal with your collection.
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  #3  
Old 05-22-2022, 01:51 AM
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PuiPuiMolcar PuiPuiMolcar is offline
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thank you Estacion!
yeah hassle free is not the right word, maybe least stressful is the better fit.
I have seen that people can reuse LECA after years so I think I will look into that. I do see the benefit of charcoal too, especially for big orchids.
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Old 05-22-2022, 11:45 AM
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Good quality medium is important. If you use Orchiata, it usually lasts until the plant outgrows the pot - 4-5 years no problem. And comes in a variety of sizes. I choose medium and pot/basket/mount based on the water needs of my plants, so that I can water large groups of plants (all in an area) the same and have different outcomes. Example - my most sunny area is perfect for both Cymbidiums and Laelia anceps their relatives. The Cyms need to stay damp, so they get small bark with small (#2) perlite. The Laelias (which hang above the Cyms) need to dry out fast, so those are in baskets with little or no medium. Both get watered the same - about every 2 days in summer, 3 days in winter (automatic sprinkler system) The Cyms stay damp, the Laelias with the same watering are dry in 2-3 hours. Both groups are happy. Easy for me, so I'm happy too.
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Old 05-23-2022, 06:13 AM
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If you use high quality bark as Roberta suggests, repotting can be done less often. It's expecially useful for plants that like to stay damp/wet (Paphs, Phrags...) since the constant moisture degrades bark more quickly. One well known nursery in Switzerland pots up all his Paphs in Orchiata and says the plants can go 4-5 years between repottings.

If you are using a mix of bark and sphag, I advise to ditch the sphag in the mix. Sphag is the first 'ingredient' to go sour (~1 year usually). I stopped using it and went 100% bark, and chose a finer grade to compensate for the absence of sphag. I now repot every 3-4 years instead of every 2!

I also took Roberta's advise a couple years ago and started potting everything in a particle size that fits my watering schedule so that everything gets watered at the same frequency (with some exceptions). It took some trial and error to figure out, but watering is also less of a hassle now.
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Old 05-23-2022, 10:09 AM
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Over the past year or so, I have converted all my plants to inorganic media.

It actually began when I learned that, over winter, the evaporative cooling from the S/H pot was too cool for my phals and I repotted them all into sphagnum. As Camille said, it went sour pretty quickly, especially when the plants were outdoors. I experimented with rock wool cubes as a substitute.

It looked good at first (indoors), but overhead flooding while outdoors compacted it too much, so I started mixing LECA and rock wool, and so far, that seems to be working well.
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Old 05-23-2022, 01:41 PM
Mountaineer370 Mountaineer370 is offline
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I use Orchiata bark almost exclusively. I've used different sizes depending on the type of orchid and the roots. Now that I'm growing only mature Phals, I'm using the large, but not extra-large, size. In my personal experience, repotting happens because a plant has outgrown its pot, not because the bark has broken down. The main downside I can see with Orchiata is that you do have to water more often than many other types of media, especially in low-humidity situations. That's not an issue with me, with my small number of plants.
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