It will grow in full sun or partial; it grows to about 2'6" - 3' tall maximum, and only needs feeding in the sense that I try to spread compost round all the plants in early spring to nourish the soil.

The only thing I would add to this is it can look a bit tatty after flowering so it's a good idea if you can put it in a border behind something else

Many thanks to Spritzhenry and Andrewr for your very helpful comments and advice. Am trying to help bees in my garden so hoping 'Gay Feather' will be attractive to them! Regards Allottmentee