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Watering mounted orchids

Posted by gardenbear1 5a (My Page) on
Wed, Jun 29, 11 at 11:54

I have 4 catt and 1 Den mounted and I've been watering 2x a week, I put them in the sink with water and let them soak for about 20 min or so, I all so feed them ever other week, there growing well but I just want to make sure there being watered right, I mist them every other day
Thanks for any and all help

Bear


Follow-Up Postings:

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RE: Watering mounted orchids

Depends on your climate. They need to be watered exactly like potted orchids. Water them, when the roots get dry water them again. For me that means every day. When it gets super hot, I'll water them twice a day. I add very dilute fertilizer each watering.

Urea works for potted orchids, sort of. The resident bacteria in the pot convert the non-usable urea to nitrate which the orchids can absorb. With mounted orchids that does not work as the excess water runs off and no conversion to a useful N type can take place. Use a non-urea fertilizer.

Nick


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RE: Watering mounted orchids

Yes, watering depends entirely on how fast the mount dries. Water whenever the mount dries out, not on a prescribed schedule.

Also, while I do use a urea free fertilizer, I don't see any problem with using urea based fertilizers on mounts. Here's a good link I've posted before.

Nitrogen in fertilizers and the truth about Urea

And a quote from it:

"Urea hydrolyses into ammonium (NH4+) and C02. This breakdown of urea can take place in the surrounding soil, bark or coir and in the roots and leaves of orchids. The urease enzyme breaks down the urea in leaves and roots. Urea is readily absorbed by roots and leaves and can be used in foliar feeding. While urea is broken down in a growing medium and the resulting ammonium nitrogen is absorbed by the orchid, it is not necessary as orchid can directly absorb urea and break it down within the orchid. Contrary to older orchid book statements urea does not take a year to break down, and can be used by orchids directly."


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RE: Watering mounted orchids

I water mounts like I vote. Early and often.


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RE: Watering mounted orchids

Except when it's really hot in SOCAL, then I water late and often. If on a 80F plus day I water early, they are dry in a heartbeat. If I water after sunset, they remain moist until the next morning.

Nick


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RE: Watering mounted orchids

Good point. I'm also finding that in some cases it's better to water at night. Allows plants to become fully hydrated before having to bear the heat of the day.


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RE: Watering mounted orchids

I forgot to say these plants are in side in a south facing window, with day time temps about 85F and 70F at night, I will start to check them more often to make sure there not dried out, I've been using Urea free fert, because it was giving to me when I first got in to Orchids


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RE: Watering mounted orchids

Another way to deal with hot days is to water very early, like Richard says. today I watered at 5:30AM, I'm sure they will stay moist for a while before the heat of the days dries them out.

Nick


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RE: Watering mounted orchids

Not all orchids, obviously, but many will do fine if the roots dry after they are well watered once a day.

Once in the range above 90F, they need to be watered again. Our forecast for Sunday is 99F and my orchids will get watered until the temp is back below 90F, no matter how late that might be.


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RE: Watering mounted orchids

When it's that hot, I water twice a day, as early as possible and as late as possible, they get bone-dry in mid day.

Nick


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