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thefof

Orchid advice. please

3 years ago
last modified: 3 years ago

Hi all

I've only half heartedly tried orchids, once, when in Australia. Killed them all.

Daughter presents me with a very sorry looking orchid with a dead flower stalk and only 2 fronds left. Apparently it had had 5 when she was given it. Still in a ceramic container, containing the pot, and 1/2" water. Uhhhh!!!!!!

I am guessing it is a moth orchid, ( Phalaenopsis cv), but I never saw the bloom which apparently was blue (?). If so, then an epiphyte.

Bought a bag of orchid repotting mix, or so branded All it contained were 10mm lumps of pine bark and stated only use large bark as peat, moss and fine bark retain too much water and kill the roots. OK, but.....

Depotted, trimmed the dead roots and repotted it. Watered it and cleaned up.

2 hrs later I again depotted it. The bark gave BRILLIANT drainage and BRILLIANT access to air but retained ZERO moisture. The water just flowed through and any moisure left on the bark was dry 20 mins later. The bark was totally hydrophobic.

In nature the roots would be part of a living mat of mosses, dead leaves, etc "wrapped around" a branch fork. This mat would have to be free draining, very open in structure and would probably be fairly poor in nutrients.

The weather was lousey so I couldn't go to the moors and get some live sphagnum moss to experiment with, so I mixed the bark with some composted Fine Bark, I use on the garden, which retains moisture.

Thing settled down over the next few weeks, with an occasional water with a weak orchid feed and VERY weak foliar spray of the same feed..

So you gurus out there, what should I do now?

It now has 2 new, very heathly looking fronds:



On the right had side there are layers of new roots:


and on the otherside one root looks like it wants to escape:

Frond colouration



Edit: Added final image showing leaf colour.


TIA

Fof

Comments (4)

  • 3 years ago

    My 13 year old phal has only been grown in pure pine bark. I water by setting it in a container and fill with water up to the top of the pot and let it soak for 20 minutes or so. I do this once a week in summer and about every 10 days in winter Mine summers in shade on my porch until night temps dip below 40F. The cool nights help trigger flowering.

    tj

    thefof Zone 8/9 UK thanked tsugajunkie z5 SE WI ♱
  • 3 years ago
    last modified: 3 years ago

    The fof, From the looks of your photos, I do not see any major problems with your orchid. Getting the plant out of the ceramic pot and ½” of water is probably what saved it for you. Orchid roots in standing water only last a few days before root rot sets in.

    The plant does appear to be a Phalaenopsis, but if the blooms were truly blue, they had probably been dyed that color. They can cut the bloom spike, and insert a dye that colors all the blooms. Colors that “Mother Nature” has never seen before.

    Your potting was basically correct, but…. I would suggest you should have left the plant with trimmed roots unpotted for a day or so to allow the cut roots to heal a bit. At the time you trimmed the roots, place the potting mix in a porous bag and submerge it in water until you are ready to repot. Wet bark mix produces much less dust, and is generally easier to work with, not to mention it holds lots more water. When you get the plant potted, water it and set it aside in a shady location and allow it to get really dry before putting it on the bench where you are going to grow it. This is more of the “letting the roots heal process”. You are well past this step now. Light misting is fine during this time, or anytime, orchids love a cool shower from time to time.

    Normally your orchid mix will allow water to pass right through the pot, but once wetted once it usually retains water much better. If it still does not hold enough water to make you happy, add a couple of drops of dish washing detergent to the water for a few waterings.

    I, personally don’t use Sphagnum unless I have a plant that likes a really moist growing situation. Phal’s don’t.

    To me, your plant looks happy in the situation you have it in. I’m not sure of what kind of bark your mix has for the primarily ingredient, but it looks more like a Fir type than Pine. What we call pine trees in South Carolina is usually not recommended for orchid mixes. Our pines are predominately Loblolly, and Long Leaf, and the Fir bark usually comes from Canada or the western parts of the U.S.

    If you are going to call me a “guru”, that’s fine. My suggestion would be for you to enjoy your plant. You appear to have done well by it.

    Bill

    thefof Zone 8/9 UK thanked Billsc
  • 3 years ago

    Bill.

    Lots of good advice.

    Your comment " Orchid roots in standing water only last a few days before root rot sets in. " answers a question I've tried to solve, online, with no success.

    Pine/Fir. A good question. When I saw the repotting mix, I immediately saw what I know as Pine - red/brown, looks like multiple layers compressed in irregular chunks. The pack only says bark.

    To me pine bark will absorb water but very reluctantly. Its very hydrophobic.

    What I know as Fir bark tends to be greyer and is more fibrous, and is much less water repellent. I haven't seen fir bark products for years, its all pine.

    Again. Thanks

    Fof

  • 3 years ago

    I use only pine bark, big chunks and little ones. Perfect!

    thefof Zone 8/9 UK thanked User
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