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Orchid Crown Rot

Tips for Treatment and Prevention

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crown rot - orchids

Crown rot is a common orchid ailment and is identified by droopy leaves breaking off at the base of the leaf. In advanced cases, the entire base of the orchid will turn black. 

Discover how to identify treat and prevent orchid crown rot

What is Orchid Crown Rot?

Orchid crown rot occurs when water accumulates and lingers at the base of the orchid leaves. The good news is that you can easily treat crown rot with a product that you probably already have on hand – hydrogen peroxide.

crown-rot-watered-with-orchid.png

The crown rot in this case is too far advanced for saving. To prevent crown rot always be on alert for signs of overwatering. The well-meaning owner of this orchid placed ice cubes on the leaves of the orchid. When the ice cubes melted, water accumulated between the leaves resulting in crown rot.

How to Treat Orchid Crown Rot with Hydrogen Peroxide

It’s time to get out your first aid kit, not for you, but for your orchids. Pour a small amount of hydrogen peroxide over the affected area on your orchid. You will see the peroxide bubble up. That is normal. Repeat treatment every 2-3 days.

How to Prevent Orchid Crown Rot

Tip #1: Keep water from lingering at the base of the leaves.

As the saying goes, an ounce of prevention is worth a pound of cure. Crown rot is easy to prevent. When watering your orchid try to keep water from accumulating at the base of the leaves. 

Avoid overwatering your orchid. Pot your orchid in a well-draining potting mix and don’t let your orchid sit in water.  After watering, I like to tip my orchid to the side to let any water that may be trapped between the leaves drain away from the orchid.

CLICK HERE TO LEARN MORE ABOUT THE POTTING MIX I USE AND TRUST

Orchids need constant, but gentle air movement. In addition to preventing bacterial growth on an orchid’s leaves, a fan set to low, will also help prevent crown rot by facilitating evaporation of excess water.

CLICK HERE TO SEE THE FAN I USE FOR MY ORCHIDS

Tip #2 Be a savvy buyer and check for crown rot before you buy.

When purchasing a new orchid, take a look at the base of the leaves. You can even give the leaves a gentle tug. If the leaves are not stiff and securely attached to the stem – keep looking.

Be on the Alert

Sadly, once crown rot has advanced too far, the orchid may not be able to be saved, but if you catch it in time, the hydrogen peroxide treatment will work well at nipping root rot in the bud.

Crown rot is 100% preventable. When watering, be aware of an orchid’s sensitivity to water accumulating between the leaves, and when buying a new orchid, be on the lookout for potential crown rot.

SO PRETTY!

BUY PHALAENOPSIS ORCHIDS

PHALAENOPSIS IN 2 IN POT

MINI PHALAENOPSIS IN 3

BARE ROOT ORCHIDS

If you purchase bare root orchids, you will need a good potting mix. This is the potting mix I use and trust:

ORCHID POTTING MIX

To provide additional moisture for Phalaenopsis orchids, add a bid of sphagnum moss to the bark mix. This will keep your Phals evenly moist – not too dry, and not too wet.

SPHAGNUM MOSS

You will also need a pot for your orchids. These liner pots are made of strong, durable plastic that provide drainage and allow you to see the roots and potting media. For added stability, place the liner pot inside a ceramic pot. These are the liner pots I use:

SLOTTED CLEAR ORCHID POTS

If designer, hand-thrown pottery is more your style, I suggest Jolene’s Orchid Pots. As an orchid grower herself, Jolene creates elegant pots affording both form and function.

HAND THROWN POTTERY - ORCHID POT

 

 

6 Comments
  1. Erica Scheepers says:

    Hi my name is Erica. I love all type of orchids. I have a few phal’s. I was battling to keep them alive. I’ve try different types of potting medium , bark chips and little bit of sphagnum mos. when I’ve found the right medium my biggest mistake was planting in too big pots. I’ve change most of my orchids to smaller pots , making from plastic cool drink bottles. When it is time to water, I put water in a jug and slowly put the plant in the water keeping the top above the water line, then I hold the pot for a minute. Then I lifted it and wait for the water to run out. Then to be sure I put my orchid on a dry towel, so that all traces of water will be absorbed by the towel.

    1. Anna says:

      Erica,
      Thanks so much for sharing! We are in this together. Yes, orchid like to be underpotted. I also appreciate your watering tips.
      Best,
      Anna

  2. Jolene says:

    Thanks for mentioning my Orchid Pots. The crown for prevention and care will be USEFUL!

    1. Anna says:

      Jolene,
      I love your beautiful orchid pots!
      Have a wonderful day,
      Anna

  3. Mariet Robinson , Moama, NSW, Australia says:

    i have been given a rock orchid from my nanna.
    I am 70 yoa, that orchird has been in the same concrete pot as long as I can remember.
    It looks very crowded there. I am not a game to take it out of the pot.
    What should I do?

    1. Anna says:

      Mariet,
      First of all, congratulations on your long-lived orchid! Your orchid does need to be repotted, and it will probably be quite difficult to remove it as I’m sure the roots have glued themselves to the pot. If you don’t want to do repot it yourself, you could ask a fellow orchid enthusiast with experience repotting. Often times orchid sellers repot orchids, and you could pay to them do it for you.
      I wish I could fly to Australia and repot your orchid – especially as you are heading into summer and I am headed for winter!
      Best!
      Anna

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START HERE to Learn More About Caring for Orchids

Find Out What I Wish I Knew When I First Started Caring for Orchids

YES! THANK YOU!