Cattleya lueddemaniana 'Yellow Eyes'

[Leslie]

Hmmm I use four of the 4 ft T5 over my lueddemanianas, 12 inches above leaves. Perhaps you will need more bulbs during winter. Also warmer nights than other catts, at 68-72F in winter.

Summer growths usually do not sheath or bloom. Most lueddemanianas bloom on winter growths in early March/April.

Hope this helps?


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[silken]

Originally Posted by Leslie

Hmmm I use four of the 4 ft T5 over my lueddemanianas, 12 inches above leaves. Perhaps you will need more bulbs during winter. Also warmer nights than other catts, at 68-72F in winter.

Summer growths usually do not sheath or bloom. Most lueddemanianas bloom on winter growths in early March/April.

Hope this helps?


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Thanks. It might help to make it a more reliable bloomer. I bloom lots of Catts under these lights, but I know this one is quite a high light species. Also it does grow cool in the winter because we can't afford to have really warm temps in the greenhouse all winter. But for ones needing more warmth I create microclimates and use several heat mats. So next winter I will ad this one to the warm area.

[Leslie]

I found that strong light and warm nights over winter helps a lot to mature and sheath the plants. Also I use the two red T5s 2700K bulbs with two 10,000K bulbs in the four mix ...


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[katrina]

Stunning flowers!!

[isurus79]

Originally Posted by silken

I have a number of recently mature new growths that I htink grew over summer and finished off over winter. They are all spotted but no sheaths. It sits directly under 2 4 ft. HO T5 lamps in winter for about 12 hours/ day and under 50% shade cloth in same greenhouse in summer. Quite a bit of light I think. I need to check but I think there are some very small new growths just starting from those growths that matured over winter. The first time it bloomed it was hanging outside from a cherry tree most of the summer, likely getting less light than it does now! Then it bloomed in Aug. It's supposed to be a fairly easy to grow and bloom Catt. species!

You might want to give your winter plants shorter days. Try turning it down to 9 or 10 hour days in winter so you get that defined seasonality that some species need.

[silken]

Originally Posted by isurus79

You might want to give your winter plants shorter days. Try turning it down to 9 or 10 hour days in winter so you get that defined seasonality that some species need.

Thanks. Can try that too. Since it already bloomed twice I never thought of that. So hard to grow everything one likes and create different situations for them. Because one of my timers died and I had to replace it, the new one got set up with a bit different time being on (I hate some of these timers). So it does get an hour less than the other side of the greenhouse just as a fluke this winter. But that wasn't enough I guess.

[Leslie]

I agree with Isurus. My timers are 10 hours from Nov-March. On April 1st, I will move to 12 hours, then 14 hours from May till Sept 1st.


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