Posted: 30/01/2014 at 17:27
You can plant them through grass Graham, make a slit and plant 3-5 in there and tread the soil back up to them gently.
They like a bit of deciduous shade, not total blazing sun.
and nice leafy soil with good drainage. This isn't always what you get under a lawn.
Personally I wouldn't put them in a lawn. They need splitting from time to time or they stop flowering. Also you have to wait til the leaves die back before you mow.