Style Observer

SO Gardening — May 27

Dear Orchid DOC

Betty Ashley

Sunday, May 27, 2018

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Dear Orchid Doc:

I have never seen an orchid that is as grateful as the Dinah Shore. It blooms up to six spikes at once and never sheds a leaf like the others. My problem with it is that it gets a spot that never leaves, and I have tried almost every chemical. Is there any suggestion to get rid of this terrible mark.


Dear Ashley:

I myself have many Dinah Shores, which are prolific bloomers. Yes, I am aware of this mark. What I have observed is that the more sun Miss Dinah Shore gets, the more the spots get prominent. Remember Mokaras don't really need much sun to be able to bloom. Having said all of that, I was recently told that Dianthane fungicide works well to keep off the fungus from the new growth. You might not be able to clean up the ones you have but you can prevent the coming ones.

Dear Orchid Doc:

My housekeeper has been over-watering my Phalaenopsis orchids, and the roots seem waterlogged. How can I save them before fungus starts to take them? They were planted in moss.


Dear KOG

Take them out of the moss immediately, trim the roots and apply some fungicide, the dry powder preferably. Lay the orchid up naked for a few days without allowing any form of water. When the roots seem to be back to normal, pot them in charcoal and stones.

Dear Orchid Doc:

How much humidity do orchids need?


Dear Concerned

Phalaenopsis orchids enjoy 50% humidity. If your home is dry because of winter heat or summer air-conditioning, place a small humidifier nearby, or a humidity/pebble tray under your plants to maintain optimum humidity. Grouping plants together will also help maintain humidity around your plants.

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