New cattleya shoots no new roots

[tbadams]

Thanks all who replied.

I have started watering more like mentioned. maybe getting wet while make it think it is the wet season?

James here are some pics. first two are the same and second two are the same.

[isurus79]

Those p-bulbs are pretty shriveled up. I would definitely increase the watering regimine while the new growths are increasing in size as it takes a lot of energy to make them. Then cut back on the water once the growths are as big as they will get.

[NYCorchidman]

All the new shoots look nice!
Well, I'm not that experienced with catts, but I do have three different types, all growing well so far.

As others mentioned, roots develop at defferent stage of growth for different catts.
I only have three, but they all have different habits.
One catt grows roots on the new lead at the same time the new lead is developing.
Another one waits until the new leads are completed before making roots on them.
Last one is somewhere between. This last one also kills its own roots on older pbs and focus on the new ones it seems.

I hope this helps relieve your worries a bit.

[james mickelso]

Hi. If there are no or just a few roots, water sparingly. Don't soak the media. There is nothing to take up the water so it will just sit there and be a perfect place for breeding all kinds of nasties. These new growths are getting their energy from the old pbulbs. That's why they are shriveling up like this. It's natural. Because the new buds will become a little stressed (don't worry) they will probably throw out a few roots sooner than normal. When you start to see the new roots growing from the base of the new growth, start watering a little at a time. Just enough to wet the surface of the media. As the new roots elongate, water a little more. But don't get the media soaking wet. Warm is good. Lightly misting the leaves is good. Especially the undersides of the leaves where the stoma are. These look like they will put out new roots in about a month to month and a half. But above all be patient. Orchids grow at their own pace. These look nice and healthy. Please keep us informed as they progress.

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[isurus79]

Originally Posted by james mickelso

Hi. If there are no or just a few roots, water sparingly. Don't soak the media. There is nothing to take up the water so it will just sit there and be a perfect place for breeding all kinds of nasties. These new growths are getting their energy from the old pbulbs. That's why they are shriveling up like this. It's natural. Because the new buds will become a little stressed (don't worry) they will probably throw out a few roots sooner than normal. When you start to see the new roots growing from the base of the new growth, start watering a little at a time. Just enough to wet the surface of the media. As the new roots elongate, water a little more. But don't get the media soaking wet. Warm is good. Lightly misting the leaves is good. Especially the undersides of the leaves where the stoma are. These look like they will put out new roots in about a month to month and a half. But above all be patient. Orchids grow at their own pace. These look nice and healthy. Please keep us informed as they progress.

Yes, I agree that watering too much is no good, but watering once every other week in summer with such a dry, new media will most likely kill the plants as they throw out multiple leads. I think the watering 1x per week with 3x per week spraying regimen will provide adequate watering without rotting the roots.

[james mickelso]

What needs to be remembered is that there are no roots with which to take up the water. It would be better to spray the undersides of the leaves than to water too much. If it is 80-90 degrees out then water enough to provide some cooling. But with no roots, there will be no water uptake. It's around 75* in my greenhouse with about 50% humidity and my recue catts with no or few viable roots get along fine with just enough water on the top of the media to help keep the leaves cool and the humidity up. What I see in the picture of the old roots may take up just enough water to provide a little to the new growths. But what is really happening is that the old pbulbs are supplying all of the new growths needs. Water as often as you think necessary but try not to get the new media too wet. There's not much there to use it. Keep us informed.

[tbadams]

one catt is putting new root growth . 3 actually and are growing fast.

been watering about 1x per week not to much and misting 2x per week.

New growth is going strong and not showing stress so so far so good.

will keep informed on progress

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