What's wrong with my begonia?

greybird_kekeMay 20, 2013

It gets these brown spots on the leaf, then the leaf drops. I pulled the plant out of the pot, and the rootball looks fine...neither too wet nor too dry. It's putting out new growth, but is dropping leaves faster than it's replacing them. It has been in decline since late winter. I put it outside a couple of weeks ago, hoping that would help. So far it hasn't. Don't know what else to do for it!

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hcmcdole(z7)

Not sure what is wrong with it other than it has something out of balance. If your stems and roots are healthy, remove the offending leaves and it should replace those in a short while. Often this is good for the health of the plant (I removed all the leaves of a small hydrangea last year due to spider mites or some other malady - it bushed out in a few weeks as though nothing had ever happened). If the roots are rotting then take some cuttings and start it over. Fresh potting mix often makes a big difference too.

    Bookmark   May 20, 2013 at 8:45PM
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teengardener1888(NY Albany 5a)

I think a photo of the whole plant would help better

    Bookmark   May 21, 2013 at 10:03AM
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greybird_keke

Thanks for the responses, I'm almost afraid it's something worse because many of my other begonias are affected as well. Teen, I would post a photo of the whole plant, but today I pruned nearly all of my begonias down to 3-4" from the soil. I'm going to give them a chance to come back out, and if the new leaves are not healthy, I guess I'm going to have to get rid of all of them. So this is the only other photo I have, which was taken before the pruning. I have a big cane nearly 4 feet tall, which only has leaves on the tip. I did not prune that one, because for the moment it's leaves look OK. I really to hate to lose all these, they were absolutely beautiful last fall.

    Bookmark   May 21, 2013 at 8:15PM
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hcmcdole(z7)

Don't give up that easily. Cut them back, start the tops over, give them a good growing spot and water regularly. You might be surprised on how well they respond.

    Bookmark   May 21, 2013 at 9:03PM
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