How do I avoid overpaying at spice gardens near Kandy?

Most gardens offer free educational tours which are genuinely interesting. However, the shops at the end can be very expensive. My advice is to enjoy the tour, learn about the plants, but do not feel obligated to buy anything. If you want spice products, you can find the same quality for a fraction of the price at the Kandy central market. Always double check the ingredients if you are buying medicinal oils.