The seed source is www.peperlover.com .

Dropping leaves may be a sign of some problems. I think something goes wrong with this plant. The leaves are getting rusty it started around the vein. It is only on the mature/old upper side leaves and under side has no color change.
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I had this problems before but never found the real reason. I am thinking to repot this one in the new soil.

Your advice and help will be appreciated.

Thanks in advance.

Caelian

Did you mean "dropping" or "drooping"? I don't see any evidence in leaf dropping in the pic, but drooping, yes.

DMForcier, thank you for the correction, you are right "drooping" I meant.
Caelian

Updates:Today I tried to flush out the soil but the water did not came out from the drainage holes then I found that I forgot to break the drainage holes when I planted the seedlings :(. Now it has 4 drainage holes and the water drain very well. Very soon the result may be showed up. I am also thinking to repot again.

The idea of flushing out soil is came from cannabis grow forum, they have similar problem. I had this rusty leaves problem when the plants were started blooming. When they were young may be the plants got enough nutrients and so there were no sign of rusty leaves. Finally I guessed nutrients locked out may be the main cause of this rusty leaves problem.

Caelian

This post was edited by chilliwin on Sun, May 26, 13 at 6:20

Updates: After flushed out the soil, I think the leaves are not drooping like before.

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Caelian