Absolutly superb name.
I personally wouldn't value it at £xxx,xxx to an end user, as the end users for flowers is either
a. joe bloggs flower shop
b. interflora or similar company etc
The problem with joe bloggs is, he obviously will not pay big money for it, as he won't have that kind of cash
The problem with interflora is, they are an already established brand and it would be a vanity buy for them
Just out of curiousty Julian, is the domain yours ?