Dendrobium nobile culture in tropical area

[ThePizzaMonster]

Originally Posted by OrchidBro

That is normal. These are semi-deciduous orchids so some canes may lose some leaves during the rest period and some canes might not lose any leaves. Eventually, over the life cycle of each cane, they will lose all of their leaves, but this could take many years to happen.



That would be a good indication that it is resting. My biggest nobile was in the middle of a 2nd growth cycle for the year when it started its rest period. So I have many keikis and baby growths that just stopped growing, leaves of other canes started to yellow and drop off slowly. I would continue to try and give it those colder night temps in order to get buds to develop. I am not sure your ACed room of 68 F will be cold enough to get it to bloom but you never know.

Did you get this nobile from a local grower? If so, you could always try and reach out to them and ask how they got it to bloom.

How long does the rest period usually take? I may keep going with the ACed room and if it doesn't work I may try the fridge again.

I got it from a local grower but I'm pretty sure it's imported from the Netherlands.

[OrchidBro]

Originally Posted by ThePizzaMonster

How long does the rest period usually take?

It really depends on the individual plant and conditions it is being grown in. Some people say to stop watering in October/November and don't start again until February/March. Again, that all depends on where and how it is being grown.

Personally, I observe my nobiles and their behavior to determine when they are starting to rest. I believe mine stopped growing in late November/early December and that is when I stopped watering. Looking at my photos from last year, the buds were really developing in February and it bloomed in March.

[ThePizzaMonster]

Originally Posted by OrchidBro

It really depends on the individual plant and conditions it is being grown in. Some people say to stop watering in October/November and don't start again until February/March. Again, that all depends on where and how it is being grown.

Personally, I observe my nobiles and their behavior to determine when they are starting to rest. I believe mine stopped growing in late November/early December and that is when I stopped watering. Looking at my photos from last year, the buds were really developing in February and it bloomed in March.

So I've got an update. I don't know if it was the air conditioner or that the temperature got cool enough at night but the plant bloomed beautifully.

[apfire]

I really like the yellow bloom.