Hi,
I have grown Phormium Tenax from seed - collected locally from an old
garden in Aberdeen. The largest of my plants (all pot grown) would be 4 - 5
ft high with a spread of 3 - 4 ft - it's in a largish pot - 20" or so. It
would be 3 -4 years old now. Has anyone any idea when it might / could
flower? Should I try giving it a higher potash feed this spring?

Chris S