My wife has some Busy Lizzies which she has grown indoors from seed
and intends to keep indoors.

They seem to be growing very well, the tallest being about 10 inches
tall (she planted the seeds some months ago).

Should they not be flowering by now though? There's no sign of any
flower buds, the plants just keep growing!

Also, should they be watered often? It's just that we haven't watered
them for maybe a week or so now and they show no signs of *needing*
any water. I guess we're wary of over-watering them,

They don't get any direct sunlight, but they are in a well lit room.

Thanks for any advice.