Quote:
Originally Posted by AnitadeWaard
Not sure if I understand the question, Ray, what exactly do you want me to tell you? Paph is sitting on East-facing windowsill, keeping it moderately moist, humidity is 50-60%, fertilizing once a week. Reading around, I think I should try less light?
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A lot of problems will present as the same symptoms so it is very hard even for an expert to identify a problem based on a picture alone. Some will even go so far as to say it is physically impossible although some things can be seen from a picture.
An easier way and more accurate way is to find out what conditions you have been giving your plant and whichever is not right is usually the culprit.
Which is why Ray wants to know the day time temps, the minimum night time temp it receives, the humidity it is kept at, the ph of your water and what kind of light, artificial or natural and how much, south facing, west facing etc. Those will be the most likely factors affecting growth.
You say you feed once a week and like I already pointed out it is hard to identify a problem based on a picture, certain things can be ruled out though, like overfertilizing. That would create necrosis on the leaf edges which you haven't got.
One thing it could be is a deficiency of a micro nutrient. That is very hard to identify but changing to a better nutrient would resolve that so you better say what nutrient you are using too.
Whenever any plant has a problem the first thing to do though in my opinion is inspect the roots thoroughly even if that means disrupting them by 'repotting' - better safe than sorry.
You don't want any brown, soggy, mushy or smelly roots.
To me personally it looks like a deficiency but again like I have said it has been pointed out numerous times that it is physically impossible to tell just by looking at a pictures so your best bet is to use a fan - consensus on this forum is that sorts out all plant problems.
I have posted before that the wrong PH of your feeding water can lock out nutrients and look identical to a nutrient deficiency which is why I am suspecting this is the most likely case based on the discolouration on the underside of your leaves since plain rain water would not even cause that much deficiency if it is a deficiency but tap water and the wrong ph can - but since my assumption is based on looking at a picture, make sure you listen to Ray's advice after he analyses your answers before you listen to any of my novice advice.
So lastly, what is the ph of your feeding water? Tap water or rain water.
Yellowing Leaf of Mottled Leaf Paph
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