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I'm sorry for some OFFtopic. One man asked me what happened to his plant but i didn't know what to answer him. I think it maybe overwatering? Here are some pics:
This is magnolia grandiflora
This is evergreen Rhododendron
Last edited by serj on Tue Jan 04, 2011 6:02 am, edited 1 time in total.
Ive never seen leaves go black like that from not watering, for me they shrivel up, and go dry. These seem to be mushy. I would say frost damage, but then why would soem of the lower leaves, be black , while some of the top ones arent???
I took a quick look in my gardening book, it might be phospherous deficiantcy. usualy a problem in areas with high rainfall, and acidic soil. The book says bonemeal, or a general NPK fertilizer. a quick quote from my book "techniques and tips for gardening"
" symptoms are similar to nitrogen deficientcy: weak growth, leaves are small and become dark green and purple (looks at serjs pic), flower and fruiting is small, while fruits taste acidic.......... phosphorus washes out of limestone and heavy clay soils very easily"
ID test the soil for PH, and if its acidic, and you have clay soil im assuming its a phospherous defficiantcy. Im not an expert though, hopefully someone can back me up
"The definition of insanity, is doing the same thing over and over, and expecting different results" - einstien