Lavender’s Blue, Multis are Orange

At the given coordinates, you will find an information board about lavender, which is growing in the fields all around you. That will be very obvious if you visit in June and July, perhaps less so at other times of the year.

Substitute the numbers on the sign to calculate the final coordinates.

Tiny transplants take A years to form a hedge.
Plantations remain productive for BC – DE years.

Checksum of all digits is 36