Buying foreign food
Can you buy Artichoke in Kyoto? Maybe.
Certain shops have a selection of food from other countries.
Meidiya is expensive but high quality with a good variety of dry and fresh foods as well as drinks. Your best chance to find Artichoke and rare items. Kaldi mostly has sweets, snacks, and drinks Gyomu super is a very inexpensive bulk supermarket where the quality varies but it can be great for certain items and frozen foods. It's a great place to buy bottled drinks at a low price.