As I won't be able to attend the funeral myself and flowers die so quickly I searched and found a group that plant trees and groves in memory and celebration.
I have established a grove in memory of Jonathan and when this has been processed (next 5-10 days) then anyone around the world will be able to access his grove's webpage and leave tributes as well as purchase additional trees to be planted in his memory for the quite reasonable sum of £5.
I'll update this thread once I have the details of his grove's webpage but wanted to let people know I had done it now in case they too were considering sending flowers and would prefer to plant a tree instead.
I have also asked Jil if she will inform Jonathan's family of this.
This a link to the webpage of the group in question
Trees for Life