Secreted in the back of a flower shop is this fairy-tale teahouse with flower beds running under the glass-top tables and more overhead, plus cut blooms in vases on every available surface. Tea comes by the pot and starts at ¥750; there are pretty sweets and salad spreads on the menu too. Reservations aren't accepted so you may have to queue.
Aoyama Flower Market Teahouse
Harajuku & Aoyama