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#1
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Cym leaves collapsing
Cymbidium leaves not able to support itself.
I have two cymbidiums since December. One is a standard Cym and the other I think is the warmer growing Chinese cym. They both have been putting out new growth for over 2 months now however the leaves can't support it owns weight and bend/flop over on it self at 1/3 to 1/2 length up from the bulb. The growth seems softer unlike the older leaves which are harder and arch gracefully. I grow outside in Southern California under a tall palm tree. It gets direct sunlight till 12noon then it gets dappled shade from the palm tree's shadow till 2 pm then on to more direct sunlight. I water it 3x a week by soaking the pot in Better Grow 20-14-13 at 3/4 tsp a gallon or roughly 200ppm of N. Mix is bark and perlite for standard Cym and bark and fine gravel i think for the Chinese cymb. Also the older leaves are yellow at the tip and progressing downward. Some of the older leaves are also splitting lengthwise right at the main support spine. Could anyone give me some idea as to what is causing this? |
#2
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Cym leaves collapsing
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#3
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Cym leaves collapsing
My guess is way too much fertilizer.
"Liam" wrote in message m... Cymbidium leaves not able to support itself. I have two cymbidiums since December. One is a standard Cym and the other I think is the warmer growing Chinese cym. They both have been putting out new growth for over 2 months now however the leaves can't support it owns weight and bend/flop over on it self at 1/3 to 1/2 length up from the bulb. The growth seems softer unlike the older leaves which are harder and arch gracefully. I grow outside in Southern California under a tall palm tree. It gets direct sunlight till 12noon then it gets dappled shade from the palm tree's shadow till 2 pm then on to more direct sunlight. I water it 3x a week by soaking the pot in Better Grow 20-14-13 at 3/4 tsp a gallon or roughly 200ppm of N. Mix is bark and perlite for standard Cym and bark and fine gravel i think for the Chinese cymb. Also the older leaves are yellow at the tip and progressing downward. Some of the older leaves are also splitting lengthwise right at the main support spine. Could anyone give me some idea as to what is causing this? |
#4
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Cym leaves collapsing
Once our temps hit 80 and up, our cyms take watering every other day
especially when the nights don't go down below 70. But we still only fertilize once a week with 1/4-1/2 strength 20-15-10 depending on the season. So my guess is way too much fertilizer causing leggy (soft) leaves. "Geir Harris Hedemark" wrote in message ... (Liam) writes: I water it 3x a week by (...) Could anyone give me some idea as to what is causing this? Check the roots. If you really water the way I think you are watering, and 3x a week, I suspect you have extensive root rot. Geir |
#5
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Cym leaves collapsing
"V_coerulea" writes:
Once our temps hit 80 and up, our cyms take watering every other day especially when the nights don't go down below 70. But we still only Really? BTW: 80 at this time of year shouldn't be allowed. The midday temps here just hit the 60s. Geir |
#6
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Cym leaves collapsing
Such is life in the southern USA. I think you have a good idea. Maybe if we
ban together we can also outlaw tornadoes, hurricanes, and dangerous thunderstorms with 4-5" hail, 60 mph winds and constant cloud to ground lightning. Really, todays high only hit 79 because we we mostly cloudy with some rain. We're rapidly approaching the temps where your highs will be looking awfully darn good. Our cyms pull through it all in great shape with fine blooms. Really tough aas long as they get their water. Gary "Geir Harris Hedemark" wrote in message ... "V_coerulea" writes: Once our temps hit 80 and up, our cyms take watering every other day especially when the nights don't go down below 70. But we still only Really? BTW: 80 at this time of year shouldn't be allowed. The midday temps here just hit the 60s. Geir |
#7
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Cym leaves collapsing
"V_coerulea" writes:
Such is life in the southern USA. I think you have a good idea. Maybe if we ban together we can also outlaw tornadoes, hurricanes, and dangerous thunderstorms with 4-5" hail, 60 mph winds and constant cloud to ground lightning. Sounds like something I would want to experience once, but only once. On the other hand, there are still patches of snow around here. Not Good. We're rapidly approaching the temps where your highs will be looking awfully darn good. Our cyms pull through it all in great shape with fine blooms. I am new to vandaceous orchids. I am pondering trying to have them outside during the day from sometime in the middle of may until whenever the weather goes colder. I am not satisfied with the light they get indoors. Does this mean I will have to upgrade my once-a-week watering regimen as well? I think 80 is a realistic daytime high here, absolutely not much higher than 90. Humidity is about*30-40%, light level is approx. 100-125klux right now. They will be in full sun from 2pm until about 10pm, and located on a tray in a container filled with water in a hopeless attempt to increase the humidity around the plants. Is this a suitable climate? I can leave them indoors, in which case they only get about 30klux of artificial light, same humidity, and a little higher temp without any air movement. Will the light be too much for them? What should I look for when trebling or quadrupling the amount of light, and how do I tell wether they need more or less water short of tipping them out of the pot? Will pests be a problem? There are only three plants I plan on trying this with - a vanda sansai blue, an ascocenda sunchart x yip sum wah, and an ascocenda su fun beauty. The first one is strap-leaved and small (2 years until flowering, I guess). the two others are semi-terete-leaved adults. Geir |
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