Home |
Search |
Today's Posts |
#1
|
|||
|
|||
yellow and dry phalaenopsis leaves
I posted a question about leaves dropping off phalaenopsis. The baby
one that had lost one of its three leaves is in danger of losing the second--it's looking yellowish and dry. Why is it? I don't understand it--the baby Vanna and miltonia cross that's on the same shelf is doing well. Some of the larger oncidium on the shelf above it are sprouting new leaves and/or roots. Is it because it's too much light--the grow shelf is inside the patio door, where it gets late afternoon sun. Because the sun is quite strong, I've had the vertical blinds partly slanted to let in only a bit of light. Because we've had a lot of windows we get a fair amount of indirect light. Is it because there's not enough humidity? Thanks in advance. Lil |
#2
|
|||
|
|||
yellow and dry phalaenopsis leaves
Lil,
Too much sun on a phal results in tissue burning - the damaged patched end up looking like parchment. Too little humidity is usually manifested by dull looking leaves. Loss of leaves as you describe sounds like serious underwatering, a bacterial or fungal infection, or mineral toxicity of some sort. Fill in more about the medium and your watering/feeding regimen, won't you? -- Ray Barkalow - First Rays Orchids - www.firstrays.com Plants, Supplies, Books, Artwork, and Lots of Free Info! .. . . . . . . . . . . "Lil" wrote in message m... I posted a question about leaves dropping off phalaenopsis. The baby one that had lost one of its three leaves is in danger of losing the second--it's looking yellowish and dry. Why is it? I don't understand it--the baby Vanna and miltonia cross that's on the same shelf is doing well. Some of the larger oncidium on the shelf above it are sprouting new leaves and/or roots. Is it because it's too much light--the grow shelf is inside the patio door, where it gets late afternoon sun. Because the sun is quite strong, I've had the vertical blinds partly slanted to let in only a bit of light. Because we've had a lot of windows we get a fair amount of indirect light. Is it because there's not enough humidity? Thanks in advance. Lil |
#3
|
|||
|
|||
yellow and dry phalaenopsis leaves
Ray,
Lack of humidity might be the problem--except the pot is sitting on top of a piece of plastic with holes in it, and the plastic "table" is sitting in a dish of water (about 0.25 to 2 in. of water. We religiously water twice a week now that it's summer and it's been pretty warm in the house. I've been careful to give the little phalaenopsis only a little water (about 2-3 tablespoon?) each time. (This is because when I repotted the larger phalaenopsis in new medium fir bark, the roots were brown and looked a bit rotted.) The one remaining leaf on the little phalaenopsis is still glossy green (unlike the dull dark color of the large phalaenopsis before it rotted off). My gut feeling is that I still haven't figured out the right balance of light, water, and humidity for the phalaenopsis. I'm not sure what I should try first--increase the amount of water in the dish to increase the humidity? Thanks in advance. Lil "Ray" wrote in message ... Lil, Too much sun on a phal results in tissue burning - the damaged patched end up looking like parchment. Too little humidity is usually manifested by dull looking leaves. Loss of leaves as you describe sounds like serious underwatering, a bacterial or fungal infection, or mineral toxicity of some sort. Fill in more about the medium and your watering/feeding regimen, won't you? -- Ray Barkalow - First Rays Orchids - www.firstrays.com Plants, Supplies, Books, Artwork, and Lots of Free Info! . . . . . . . . . . . "Lil" wrote in message m... I posted a question about leaves dropping off phalaenopsis. The baby one that had lost one of its three leaves is in danger of losing the second--it's looking yellowish and dry. Why is it? I don't understand it--the baby Vanna and miltonia cross that's on the same shelf is doing well. Some of the larger oncidium on the shelf above it are sprouting new leaves and/or roots. Is it because it's too much light--the grow shelf is inside the patio door, where it gets late afternoon sun. Because the sun is quite strong, I've had the vertical blinds partly slanted to let in only a bit of light. Because we've had a lot of windows we get a fair amount of indirect light. Is it because there's not enough humidity? Thanks in advance. Lil |
#4
|
|||
|
|||
yellow and dry phalaenopsis leaves
Lil,
You haven't said where you live, but if it's in a low-humidity environment (air conditioned home, for example), that tray of water is likely doing very little to raise the humidity around the plant. If the roots were rotted, the thing to do is to cut off the brown, rotted parts, and repot it into fresh medium that has been saturated then drained (that is, the medium is wet, but not dripping), and keep it in a warm, shady, VERY humid environment without watering again until new root growth has begun. I accomplish the ultra-high humidity by putting a clear baggie over the pot and plant to simulate a greenhouse. I suspect your assessment of learning the proper balance is a correct one, but I can almost guarantee that pouring a few tablespoons of water through fresh, medium-size fir bark is hardly wetting it at all. You'd be better off watering it thoroughly with tepid water, waiting 30 minutes and doing so again, THEN let it go until it's almost - not completely - dry before repeating the process. -- Ray Barkalow - First Rays Orchids - www.firstrays.com Plants, Supplies, Books, Artwork, and Lots of Free Info! .. . . . . . . . . . . "Lil" wrote in message om... Ray, Lack of humidity might be the problem--except the pot is sitting on top of a piece of plastic with holes in it, and the plastic "table" is sitting in a dish of water (about 0.25 to 2 in. of water. We religiously water twice a week now that it's summer and it's been pretty warm in the house. I've been careful to give the little phalaenopsis only a little water (about 2-3 tablespoon?) each time. (This is because when I repotted the larger phalaenopsis in new medium fir bark, the roots were brown and looked a bit rotted.) The one remaining leaf on the little phalaenopsis is still glossy green (unlike the dull dark color of the large phalaenopsis before it rotted off). My gut feeling is that I still haven't figured out the right balance of light, water, and humidity for the phalaenopsis. I'm not sure what I should try first--increase the amount of water in the dish to increase the humidity? Thanks in advance. Lil "Ray" wrote in message ... Lil, Too much sun on a phal results in tissue burning - the damaged patched end up looking like parchment. Too little humidity is usually manifested by dull looking leaves. Loss of leaves as you describe sounds like serious underwatering, a bacterial or fungal infection, or mineral toxicity of some sort. Fill in more about the medium and your watering/feeding regimen, won't you? -- Ray Barkalow - First Rays Orchids - www.firstrays.com Plants, Supplies, Books, Artwork, and Lots of Free Info! . . . . . . . . . . . "Lil" wrote in message m... I posted a question about leaves dropping off phalaenopsis. The baby one that had lost one of its three leaves is in danger of losing the second--it's looking yellowish and dry. Why is it? I don't understand it--the baby Vanna and miltonia cross that's on the same shelf is doing well. Some of the larger oncidium on the shelf above it are sprouting new leaves and/or roots. Is it because it's too much light--the grow shelf is inside the patio door, where it gets late afternoon sun. Because the sun is quite strong, I've had the vertical blinds partly slanted to let in only a bit of light. Because we've had a lot of windows we get a fair amount of indirect light. Is it because there's not enough humidity? Thanks in advance. Lil |
#5
|
|||
|
|||
yellow and dry phalaenopsis leaves
I'll second Ray's assessment and point out that especially with bark,
you can't tell if it's dry enough by looking at the surface - that'll always look dry. Eventually, you'll learn to tell by the weight of the pot. Until then, you can stick a pencil eraser down into the bark and see if it comes up moist. Watering once a week works for me. Ray wrote: Lil, You haven't said where you live, but if it's in a low-humidity environment (air conditioned home, for example), that tray of water is likely doing very little to raise the humidity around the plant. If the roots were rotted, the thing to do is to cut off the brown, rotted parts, and repot it into fresh medium that has been saturated then drained (that is, the medium is wet, but not dripping), and keep it in a warm, shady, VERY humid environment without watering again until new root growth has begun. I accomplish the ultra-high humidity by putting a clear baggie over the pot and plant to simulate a greenhouse. I suspect your assessment of learning the proper balance is a correct one, but I can almost guarantee that pouring a few tablespoons of water through fresh, medium-size fir bark is hardly wetting it at all. You'd be better off watering it thoroughly with tepid water, waiting 30 minutes and doing so again, THEN let it go until it's almost - not completely - dry before repeating the process. -- Ray Barkalow - First Rays Orchids - www.firstrays.com Plants, Supplies, Books, Artwork, and Lots of Free Info! . . . . . . . . . . . "Lil" wrote in message om... Ray, Lack of humidity might be the problem--except the pot is sitting on top of a piece of plastic with holes in it, and the plastic "table" is sitting in a dish of water (about 0.25 to 2 in. of water. We religiously water twice a week now that it's summer and it's been pretty warm in the house. I've been careful to give the little phalaenopsis only a little water (about 2-3 tablespoon?) each time. (This is because when I repotted the larger phalaenopsis in new medium fir bark, the roots were brown and looked a bit rotted.) The one remaining leaf on the little phalaenopsis is still glossy green (unlike the dull dark color of the large phalaenopsis before it rotted off). My gut feeling is that I still haven't figured out the right balance of light, water, and humidity for the phalaenopsis. I'm not sure what I should try first--increase the amount of water in the dish to increase the humidity? Thanks in advance. Lil "Ray" wrote in message ... Lil, Too much sun on a phal results in tissue burning - the damaged patched end up looking like parchment. Too little humidity is usually manifested by dull looking leaves. Loss of leaves as you describe sounds like serious underwatering, a bacterial or fungal infection, or mineral toxicity of some sort. Fill in more about the medium and your watering/feeding regimen, won't you? -- Ray Barkalow - First Rays Orchids - www.firstrays.com Plants, Supplies, Books, Artwork, and Lots of Free Info! . . . . . . . . . . . "Lil" wrote in message .com... I posted a question about leaves dropping off phalaenopsis. The baby one that had lost one of its three leaves is in danger of losing the second--it's looking yellowish and dry. Why is it? I don't understand it--the baby Vanna and miltonia cross that's on the same shelf is doing well. Some of the larger oncidium on the shelf above it are sprouting new leaves and/or roots. Is it because it's too much light--the grow shelf is inside the patio door, where it gets late afternoon sun. Because the sun is quite strong, I've had the vertical blinds partly slanted to let in only a bit of light. Because we've had a lot of windows we get a fair amount of indirect light. Is it because there's not enough humidity? Thanks in advance. Lil |
#6
|
|||
|
|||
yellow and dry phalaenopsis leaves
i'm in the humid summer of toronto and we have 8 phals all spiking right
now. we water once a week, with occasional misting in between. they sit in a west facing window that doesn't get much direct sunlight due to heavy tree cover filtering most of it. the windows are open (air conditioner only in the bedroom - we learned our lesson... no spikes) all summer long. we do have some yellow leaves going on on one of them, but it seems to be growing a new leaf at the crown and a few new roots so we're not worried. good luck. "mg" wrote in message ... I'll second Ray's assessment and point out that especially with bark, you can't tell if it's dry enough by looking at the surface - that'll always look dry. Eventually, you'll learn to tell by the weight of the pot. Until then, you can stick a pencil eraser down into the bark and see if it comes up moist. Watering once a week works for me. Ray wrote: Lil, You haven't said where you live, but if it's in a low-humidity environment (air conditioned home, for example), that tray of water is likely doing very little to raise the humidity around the plant. If the roots were rotted, the thing to do is to cut off the brown, rotted parts, and repot it into fresh medium that has been saturated then drained (that is, the medium is wet, but not dripping), and keep it in a warm, shady, VERY humid environment without watering again until new root growth has begun. I accomplish the ultra-high humidity by putting a clear baggie over the pot and plant to simulate a greenhouse. I suspect your assessment of learning the proper balance is a correct one, but I can almost guarantee that pouring a few tablespoons of water through fresh, medium-size fir bark is hardly wetting it at all. You'd be better off watering it thoroughly with tepid water, waiting 30 minutes and doing so again, THEN let it go until it's almost - not completely - dry before repeating the process. -- Ray Barkalow - First Rays Orchids - www.firstrays.com Plants, Supplies, Books, Artwork, and Lots of Free Info! . . . . . . . . . . . "Lil" wrote in message om... Ray, Lack of humidity might be the problem--except the pot is sitting on top of a piece of plastic with holes in it, and the plastic "table" is sitting in a dish of water (about 0.25 to 2 in. of water. We religiously water twice a week now that it's summer and it's been pretty warm in the house. I've been careful to give the little phalaenopsis only a little water (about 2-3 tablespoon?) each time. (This is because when I repotted the larger phalaenopsis in new medium fir bark, the roots were brown and looked a bit rotted.) The one remaining leaf on the little phalaenopsis is still glossy green (unlike the dull dark color of the large phalaenopsis before it rotted off). My gut feeling is that I still haven't figured out the right balance of light, water, and humidity for the phalaenopsis. I'm not sure what I should try first--increase the amount of water in the dish to increase the humidity? Thanks in advance. Lil "Ray" wrote in message ... Lil, Too much sun on a phal results in tissue burning - the damaged patched end up looking like parchment. Too little humidity is usually manifested by dull looking leaves. Loss of leaves as you describe sounds like serious underwatering, a bacterial or fungal infection, or mineral toxicity of some sort. Fill in more about the medium and your watering/feeding regimen, won't you? -- Ray Barkalow - First Rays Orchids - www.firstrays.com Plants, Supplies, Books, Artwork, and Lots of Free Info! . . . . . . . . . . . "Lil" wrote in message .com... I posted a question about leaves dropping off phalaenopsis. The baby one that had lost one of its three leaves is in danger of losing the second--it's looking yellowish and dry. Why is it? I don't understand it--the baby Vanna and miltonia cross that's on the same shelf is doing well. Some of the larger oncidium on the shelf above it are sprouting new leaves and/or roots. Is it because it's too much light--the grow shelf is inside the patio door, where it gets late afternoon sun. Because the sun is quite strong, I've had the vertical blinds partly slanted to let in only a bit of light. Because we've had a lot of windows we get a fair amount of indirect light. Is it because there's not enough humidity? Thanks in advance. Lil |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
Yellow phal. leaves - Yellow Phal. (Small).JPG [01/01] | Orchid Photos | |||
Jasmine with yellow and red but not dry leaves | United Kingdom | |||
Jasmine getting yellow and red not dry leaves | Gardening | |||
My tomato leaves are starting to wither and get yellow patches on the leaves | Edible Gardening | |||
dry dry dry | United Kingdom |