From a Home Cooking thread:
My information is kind of old, but I do remember buying harissa in the tube (imported from France) at Corti Brothers before. Has anyone purchased it there recently? The last time I bought harissa was at Sunshine Market in St Helena. It was the Mustapha brand in the jar which has a very different texture from the tube kind (which Sunshine also carries).
I would assume the international markets on Fulton, near Arden, if my memory is correct, carry harissa? Or has anyone purchased it anywhere recently? I haven't been shopping in Sacramento lately, so I thought I would throw out the question to know for the future.