Help with identification and promote blooming

[PurpleOrchid]

Hi everyone, I've had these 3 orchids for over 2 years they have never bloomed. Can anyone help with ID please? I water all my orchids weekly weakly, maybe more often in hot weather. These have always been in a sunny window. As you see they they look healthy and roots are healthy. What should I do to promote blooms?

[pipsxlch]

1st- looks like latouria dendrobium
2nd- ???
3rd- Cattleya of some sort

You probably aren't going to be able to get closer than genus or alliance until (BIG MAYBE that it could be done even then) they bloom.

They look good, but on the dark green side. My guess would be they need more light to initiate blooming. Ideally they should be a light apple or lime green. They may also need to get a little bigger, at least the dendrobium and possibly the Cattleya also. I think the light is the most likely culprit though.

[estación seca]

614 is a Dendrobium, like pipsxlch said perhaps in section Latouria. It may not be big enough to bloom. Some Latourias like to be evenly watered through the year and some like dryish spells. I agree it could stand more light. Search here on the term Latouria to find out more about these plants. The Search function is in the top maroon menu. Insufficient light, or too much water at the wrong time of year, are the commonest causes of this kind of Dendrobium not flowering.

153 is probably a Dendrobium related to D. aggregatum. To bloom they need you to stop fertilizing in mid to late summer, very cool winter nights but not freezing, and as much light as possible during the winter. Some people stop winter water completely. Others only reduce it, making sure the plant dries completely between winter waterings. It doesn't look to me like it's getting as much light as it would prefer. Too-warm winters is the commonest cause of this kind of Dendrobium not flowering.

The Cattleya is probably not be big enough to bloom. It may not getting enough light. The whole plant should be close to yellowish green and their could be purplish speckles or spots on the leaves. The reddish area on the one pseudobulb suggests good light exposure, but some Catts do that regardless of light. The rest of the plant doesn't look to me like it's getting enough light. Insufficient light is the commonest cause of Cattleyas not flowering.

[Roberta]

PurpleOrchid, where in the US do you live? At the very least, pretty much any place the orchids could go outside in the summer. How much on either side of summer depends on where you are. But outside is where the best light and air movement are... and all of these would no doubt like more light than they are getting. In most houses, the sun shifts so that the sunny window is getting the best light only for a few hours a day - and duration of good light is a factor that is rarely mentioned, but can be just as important as intensity. When the weather dictates indoor growing, you can supplement what comes in the window with lights - fluorescent or LED that gives full spectrum, for 12 hours a day (a timer makes this labor-free) and that may help as well.

[PurpleOrchid]

Thank you everyone for the great advice. I'm sorry for the super late response. I haven't been on here for a long time. I agree it's probably not enough light. I live in New York and I grow my Orchids indoors. Some in front of a sunny picture window and some under flourescent lights. I am planning on bringing them outside this summer and see if it helps.