Dendrobium Kingianum

[Orquiadicto]

I bought a few weeks ago a Dendobrium Kingianum that had already bloomed, so it was very cheap. It has lots of keikis on every cane. I'm wondering if it will bloom only from the new canes it's growing, or will it also bloom from the old canes? It's my first Kingianum, so I have no idea.
I took 4 keikis off and planted them together in a new pot.

[Daethen]

I'm not sure on this one, but since I recently received 2 kinianum keikis I am very interested in the responses you will get.

[WhiteRabbit]

I'm pretty sure older canes can rebloom
I only got mine blooming this year, but there were multiple spikes on almost every cane - I'm sure not all the canes were new

I'm sure someone will chime in with a definitive answer

[Orchonubee]

The Kingianum I've had for about 5 years has bloomed twice, and I believe on new canes. I leave it out all year in a dappled sunny area. The first two years I brought it in during the winter & it had no blooms, then I learned it like the Florida winter cold, so I left it out and it's prospered since. To get back to the question I believe but won't swear to it, that it only blooms on new canes, but I will now watch carefully to be sure I'm correct. I remove the keikis as I read in Baker's, they retard blooming.

[glengary54]

From my experience Den kingianum blooms off of new growth. If a new growth doesn't bloom because of lack of proper conditions, it is possible for it to eventually bloom when conditions improve. In nature keikeis fall off of the mother plant as they mature and grow roots as a way to continue growing the colony.

[keithrs]

They will bloom from both old and new canes..... keiki's can also bloom. They can bloom for several years in a row of the same cane as they get older. I stop all fertilizer in nov. intel new growth starts.... this reduces the amount of keikis and you get better spikes..... Cold temps(40's) will also help make more spikes and better flowers.

[Orquiadicto]

Thank you all.
I guess I'll put her outside on the balcony when it's not so hot anymore. In winter, temperatures can go down to more ore less 5 to 10 degrees C (40 - 50 ºF). When shall I take her in again? When spikes start to form, or when the bloom buds are visible?

[keithrs]

I must ask..... What are your low temps?.....40 F? I have had mine down to 28 F on rare occasions but sees a constant 34 F. These plants do best left out year round. They can handle pretty extreme temps... 28-110 F

But, You can take it in when spikes are formed. You may not get as good of color.

[Orquiadicto]

Originally Posted by keithrs

I must ask..... What are your low temps?.....40 F? I have had mine down to 28 F on rare occasions but sees a constant 34 F. These plants do best left out year round. They can handle pretty extreme temps... 28-110 F

But, You can take it in when spikes are formed. You may not get as good of color.

Normally temperature won't go beyond 40 F. Very ocasionally it can go below 32 F. In summer, however, though temperatures don't go much beyond 80 F, on my balcony sunshine is magnified and temperatures can go up to 105-110 F. Two weeks ago I left a cymbidium outside a couple of hours and when I came back home, all the leaves had a sunburn.
I won't take any of my orchids outside until at least second half September (or only at night).

[keithrs]

Kingianum can take alot of sun.. If you acclimate them to it. You do have perfect condition for it outside.