I grow my cane begonia outside but thought I would post it here. In the recent rains the pot got filled up with too much water. I didn't notice it for a few days. I tipped the pot over and let it drain. Have not watered it for a week. It looks a little blah and weary. And there are some watermarks on most of the leaves on this 4 ft. tall plant. Hints? Suggestions?

Hm, as long as you're not seeing mushy stems I wouldn't worry too much, Cheryl. Give the stems a squeeze down near the bases, and if they're still firm, the plant is ok. I have lots of cane begonias growing outside in pots, and haven't ever lost one to overwatering. Last summer when a tropical storm brushed by, we got 9in of rain in 2 days. No problems.

Maybe it needs a little fertilizer? All that rain at once may have washed all the nutrients away?

The watermarks are sort of curious, I've never seen that before. All my cane begonias have dark or variegated leaves though so it might not show up.

The holes at the bottom of this pot are either clogged up or not large enough to allow it to drain well. I know they grow in water, but I lost one as big or bigger last year to rotting from poor drainage. The water marks are odd indeed. The plant never had them before. Tomorrow is Feeding Day. I will give it a does of Super Bloom and check the stems. Thanks, Elaine.

I would suggest repotting if the drain holes are clogged.

Cheryl, those markings on the leaves could be where uptake of the rainwater has burst the plant's cells.

I'd definitely try to address the drainage problem, Cheryl. Poke something like a metal bbq skewer into the drain hole/holes if you can get to them. Or go in from the top with the skewer and just 'aerate' the soil as much as you can, near the walls of the pot.

Otherwise, as Hetty suggests, repotting might be a really good idea. Mine are in pots, but are sunk in the ground. By this time of year the pots usually have a little 'help' with drainage as the oak tree roots find the drain holes and invade, which uses up excess moisture but also keeps the holes open.