English garden
Floriography, the sending of secret messages via coded flower arrangements, was popular during the Victorian Era (between 1837 and 1901). But it was probably invented a lot earlier. Plants have been used as symbols for thousands of years.
More complex arrangements sending specific messages might have originated from the court of Constantinople in Ottoman Empire in the 1600s. From there it said to be introduced to England in 1717 by Mary Wortley Montagu, and to the Swedish royal court by Aubry de La Mottraye in 1727.
In 1884, Kate Greenaway published The Language of Flowers, with the definitions of each flower.
Every sentiment is expressed in one form or another by these fragile blooms, and as a leading psychologist states . . . .
"Flowers are a perfect replica of human life" . . . . planting . . . growth . . . . bloom . . . . withering
For example bluebell means constancy, cape jasmine means i am too happy, Chrysanthemum, White means truth and so on.
Imagine for a moment that a messenger shows up at the door of your elegantly-appointed Victorian home and hands you a small, ribbon-wrapped bouquet, obviously hand-assembled from somebody’s garden. As an inhabitant of the 21st century, your natural inclination is to be charmed by the gift, and to search for an appropriate vase. As a wealthy inhabitant of the 19th century, your instinct is a little different: you rush for your flower dictionary to decode the secret meaning behind the arrangement.
In a beautifull spring afternoon Emily and Nicole each received a bouquet of flowers. Nicole's bouquet was mainly a hortensia, followed by an irise, a dahlia and two daffodils. Emily's bouquet was nothing but a hyacinth with two blue violets and the last impression given by the Forget Me Not.
In order to find the cache you just need to figure out the meaning of the messages sent to Emily and Nicole from theirs secrets admirers.