I have about 3 dozen tuberous begonias in clay pots. For several years I have overwintered them by bringing the pots indoors and ceasing watering in late September. This year, however, 4 of them have begun to sprout now, in spite of no water. One of those four has sent up two very spindly shoots.
What should I do? Throw in the towel, start watering them and treat them like house plants til the summer? Snip off shoots as they appear (3 are now only buds breaking the earth)? Let them wither or thrive without watering?
TIA
LAS

Hi Las, I am not a expert but I have had the same happening with an enthusiastic tuberous Begonia last year that woke up from dormancy very early, (end January) I did it give fresh soil and put it back in the same pot and treated it as a houseplant until it was safe to put outside. It did very well and flowered non-stop, I would do the same again..

I agree: treat the early ones as houseplants.
I try not to get them started too early because they can get very lanky in low light.
It is March here, before the sun becaomes stronger.