Will a Dendrobium bloom in hot temperatures? - Orchid Board

keegan937 · #1 03-09-2018, 03:50 AM

Hello,

I have a Dendrobium since the past 9 months and want to make it bloom. However the current temperatures here reach 35-36 degrees Celsius in the afternoons, and can go up to 37-38.

The plant is consistently growing roots.

I have a fertilizer mix which is specialized for blooming (NPK: 13-40-13), and also a high nitrogen one for growth.

What can I do to induce blooming?

Dollythehun · #2 03-09-2018, 06:58 AM

What kind of dendrobium?

keegan937 · #3 03-09-2018, 08:36 AM

Quote:

Originally Posted by Dollythehun

What kind of dendribium?

I do not know exactly.
I think it is some hybrid: Dendrobium honey nectar BS

Dollythehun · #4 03-09-2018, 09:03 AM

As you know, a quick search turns up lots of Dendrobium "honey"...we need more to go on. You have enough posts to take a picture, please.

keegan937 · #5 03-09-2018, 09:18 AM

Yes, this is the plant:

SaraJean · #6 03-09-2018, 01:16 PM

It might not be getting enough light, that would be a good place to start. They definitely like bright filtered sun. It looks like a Den-phal type (I think..) and those do not need a cool down to bloom like the the nobile or semi-nobile types. That’s good news about the roots though!

keegan937 · #7 03-09-2018, 01:27 PM

Well, it is sitting by the window with a lot of light.

Most of the day it gets indirect sunlight and for a short period it gets direct sun.

fishmom · #8 03-09-2018, 01:45 PM

It's hard to tell in a picture, but that looks like a pretty low-light situation to me. The large plant outside the window will also be blocking the light somewhat. Do you have a light meter? If not, you can get a rough idea by trying to cast a shadow on the leaves of the plant; you should be able to see a definite shadow-edge line. If the line is not clearly defined, the light may be inadequate.

You didn't say if you re-potted the plant when you got it. If not, this would be a good time, as roots are growing.

keegan937 · #9 03-09-2018, 01:54 PM

Quote:

Originally Posted by fishmom

It's hard to tell in a picture, but that looks like a pretty low-light situation to me. The large plant outside the window will also be blocking the light somewhat. Do you have a light meter? If not, you can get a rough idea by trying to cast a shadow on the leaves of the plant; you should be able to see a definite shadow-edge line. If the line is not clearly defined, the light may be inadequate.

You didn't say if you re-potted the plant when you got it. If not, this would be a good time, as roots are growing.

Well the picture was taken in the evening, so it won't look too bright.
I did re-pot the plant shortly after receiving it.

SaraJean · #10 03-09-2018, 02:22 PM

Quote:

Originally Posted by keegan937

Well, it is sitting by the window with a lot of light.

Most of the day it gets indirect sunlight and for a short period it gets direct sun.

All of the indirect light doesn’t sound like it’s enough. These tend to bloom better with a lot of bright, direct filtered sun light. For instance- I have mine under a 50% shade cloth that gets sun in the summer for about 6 hours a day, about and hour or two of unfiltered light in the mornings, and indirect light late in the evenings