There’s a simple requirement for anyone thinking of a garden tour: do you love gardens? If so, please read on. The cultivation of plants for food long predates history. The earliest evidence for ornamental gardens, however, is seen in Egyptian tomb paintings of the 1500s BC; they depict lotus ponds surrounded by rows of acacias and palms. The other ancient gardening tradition is from Persia. Darius the Great was said to have had a “paradise …