| Whooah, that glass bowl was a very bad idea. You need drainage. Fertilizer and mineral salts from your water will build up in the mix and kill all the roots if you can't flush the mix out once in a while. Also, what did you use for a potting mix? House plant mix is also bad news, if that is what it is. Orchids need a wet dry cycle, with air getting to the roots during the drier end of this cycle. Dendrobiums, when they are not growing or blooming like to get very dry at the roots before watering, and maybe even left dry 4 to 8 days before being watered, If new growth is present, you can water them before they are completely dry, but don't do it while they are still wet, but only while a little dampish, as in being cool to the touch below the surface. Get some medium orchid bark, a little perlite or charcoal in the mix won't hurt if that is what it comes with, and repot that into about a 5" pot, give or take a little, but you want the pot to be on the small side.
You can cut off the old bloom spike as they don't rebloom on spikes like Phals do, but the old canes often rebloom.
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Cynthia
Prescott Orchid Society  |