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Old 12-03-2013, 06:32 PM
Acorn
 
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over watering lemon balm?


ok, i have a cutting of lemon balm, it has doubled in size since i got it. i accidentally over watered it yesterday. i took it out and started left it out to air and got the roots dry today.

initial symptoms were drooping, purple spots on newest leaves, yellow edges on old leaves. is this still over watering?

i baked the soil to help dry it out, dried roots completely, let it cool, then replanted it in the moist soil.

will it come back? and if so, how long?
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Old 12-03-2013, 07:19 PM
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Hey and welcome from western NC. If it had been me I would have just left it alone after I tried to pour excess water off of the plant, over watering happens sometimes but usually it's readily correctable. By the initial symptoms you listed the yellow edges could just be the leave fixing to fall off, it's life cycle is done. Purple spots sounds more like a fungus to me but I'm nit that sure. I'm curious as to why you uprooted it in the first place, unless it was totally saturated. If it had been totally saturated I would have just taken the plant with a little of the sog and placed it into a new pot with new soil. And not water the soil. By baking the soil you have sterilized the soil so nutrients have to be replaced in the correct ph balance. It may come back but I would research the purple spots to find out what it is.
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Old 12-03-2013, 07:33 PM
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ok, i had fungus gnats and used a mixture of H202 and cinamon to kill the fungus the gnats were eating and wound up overwatering i believe. the cinamon or H202 may have had something to do with the purple.

so i need more nutrients or nutrient rich soil. well, i only baked half of it, and mixed it afterward. so is it still ok for now?
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Old 12-03-2013, 08:42 PM
Acorn
 
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i found this on a report/lecture,

Soil Thermometer
>700C: Inorganic P, Na

350-600C: Organic P, S, and K volatize

200OC: Nitrogen volatizes

175C: Hydrocarbons

100C: Carbon volatizes

i had the oven at 360 degrees Fahrenheit which converts to 182 Celsius

so does this mean my macronutrients are safe? or do i need to add calcium and the others?
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Old 12-03-2013, 10:10 PM
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If it were me I would give it some Epsom salts mixed in water to replace what may have dissipated in baking. The only time I've ever heard of the use of baking was to totally sterilize soil of everything to start a new. The macros may be safe but epsoms put back naturally what watering leaches out of a potted plant.
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Old 12-03-2013, 11:38 PM
Acorn
 
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ok, you think i can wait until it get's better?

i cut off the purple splotched leaves at the top, i didn't take the apical meristem, can't tell if it's purple or not since it is so small and it is a little dry.

when do you think it should be better?
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Old 12-04-2013, 04:03 AM
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Let it sit and rest a few days and see what happens. If the purple spots spreads well ya may have to get yourself a new plant.
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Old 12-04-2013, 12:04 PM
Acorn
 
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it has septoria leaf spot.

i cut off the affected areas, it looks like it spread a little bit to some of the stem at the top. i have 1 full leaf and 4 baby leaves left on it at the moment. hopefully this will help.

do you think anything else should be done? it is an indoor plant though.
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