mine have, but all I have done is left it in diffuse light on a window sill and watered weekly. I don't think if I have fed them or not. probably not. I have also potted up the offshoots and they are getting to a decent size so I hope they will flower this year.

I bought a nobile one in flower 18 months ago and got it to re flower following instructions on this website https://orchid.org.uk/dendcult.htm#. I haven't tried taking any off shoots yet.

I have one which I bought from Morrison's supermarket probably four-five years ago, reduced to 99p. Sad as it was at the time, no-one looks after supermarket flowers, it recovered well and flowers at least once every year. It lives on a North-ish windowsill, no direct sunlight, gets watered when I remember, fed on very rare occasions and has been repotted once. Now needs it again as it is over-crowded. I have never tried growing offshoots, but certainly will now.

Thanks for the replies.

The relevant line on the orchid.co.uk page might be this one:

"Note If you do not dry and cool the plants during winter, you won't get flowers! ".

I have other orchids (phalaenopsis) that very rarely re-flower either, so it may be that the temperature and humidity in my flat are simply too constant (warm and dry) year round for keeping orchids.