I am looking for a big, colourful plant for my girlfriend's west-facing balcony in London as a birthday present, to be delivered on Saturday. I know nothing about plants I'm willing to pay up to £100 or so.
I need it to be modern-looking, preferably with bright colours, and maybe spikes or something rather than flowers, and last for a while.
Does this sort of thing exist? I would be so grateful for any advice. Also, I am new to the forum so sorry if this is in the wrong place!