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May 23, 2015 5:34 PM CST
Name: Lee-Roy
Bilzen, Belgium (Zone 8a)
Region: Belgium Composter Region: Europe Ferns Hostas Irises
Lilies Lover of wildlife (Black bear badge)
I have a problem with my citrus sapling. This one is about two years old (!?!?) and I planted it myself from a seed out of an ordinary lemon or orange (can't remember which :p ).

During the winter months I kept it inside and it continued to do well. However when the weather turned for the better and I put it outside for it to enjoy the full sun it went downhill (I still brought it indoors every evening).
Over the course of a few weeks all the leaves turned grey/whitish and growth seized. It didn't have this problem when I put it outside the first summer.
This started a few months ago, but I didn't want to give it up so quickly so I left it outside still.
However today to my great surprise I noticed the growing tip beginning to form new leaves again. And weird: at the base of the petioles more down the stem there are new stems forming. I didn't know a tree plant this young was capable of doing that!?

Any explanations?
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May 23, 2015 7:52 PM CST
Plants Admin
Name: Kent Pfeiffer
Southeast Nebraska (Zone 5b)
Charter ATP Member I was one of the first 300 contributors to the plant database! Plant Database Moderator Plant Identifier Region: Nebraska Celebrating Gardening: 2015
Million Pollinator Garden Challenge Forum moderator Irises Garden Sages Garden Ideas: Master Level
It looks like the leaves were sun burned. Plants that have spent several months indoors generally can't tolerate very much direct sunlight. They need to initially be exposed to the sun for short periods of time until they get used to it.
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May 23, 2015 10:25 PM CST
Name: Elaine
Sarasota, Fl
The one constant in life is change
Amaryllis Tropicals Multi-Region Gardener Orchids Master Gardener: Florida Irises
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I agree a gradual transition to the full sun would be good. Maybe put it in a filtered shade spot for a few days then ease it back into the sun.

Also, what fertilizer has it had? There is a specific citrus formula sold here with high proportions of certain micro nutrients. Sorry I am not at home right now so can't list them for you.
Elaine

"Success is stumbling from failure to failure with no loss of enthusiasm." –Winston Churchill
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May 24, 2015 3:22 AM CST
Name: Lee-Roy
Bilzen, Belgium (Zone 8a)
Region: Belgium Composter Region: Europe Ferns Hostas Irises
Lilies Lover of wildlife (Black bear badge)
Isn't sun burning turning the leaves brown instead of white?

And I mulched it with some compost, use an all purpose liquid feed and once used a nitrogen rich fert from fermenting nettle leaves. But this was all after the leaves turned.
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May 24, 2015 5:40 AM CST
Name: Porkpal
Richmond, TX (Zone 9a)
Cat Lover Charter ATP Member Keeper of Poultry I was one of the first 300 contributors to the plant database! Dog Lover Keeps Horses
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It looks to me as if it is recovering nicely now. I would just give it some time to see how it does before changing anything else.
Porkpal
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May 24, 2015 7:37 AM CST
Plants Admin
Name: Kent Pfeiffer
Southeast Nebraska (Zone 5b)
Charter ATP Member I was one of the first 300 contributors to the plant database! Plant Database Moderator Plant Identifier Region: Nebraska Celebrating Gardening: 2015
Million Pollinator Garden Challenge Forum moderator Irises Garden Sages Garden Ideas: Master Level
Arico said:Isn't sun burning turning the leaves brown instead of white?



Nope, they usually turn white, almost looks like they've been bleached.
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